Acoustic trickle vent. Good luck kaintheo, Jan 20, 2008 #4. Will help to reduce condensation. VELFAC maxi-handle. Trickle vents also work in conjunction. When acoustic ventilation is required this should also be considered at the design stage, as the noise factor may actually pre-determine the method of ventilation that will be used within the dwelling. This is a type of acoustic soundproofing. Tools, Fixings & Consumables. Free next day delivery available. Wasn't sure where to post this ! We moved into a new house in June2010, when it started getting colder we closed the trickle vents on all the windows but still have a draught coming through them. The fans run 24 hours per day (usually 22 hours on trickle and 2 hours on boost) but this is directly related to occupancy in homes. There are many variables to consider in acoustic testing, please contact us for specific. com. When used correctly, trickle vents do not contribute excessively to heat loss. RRP from £2. • Night vents do not count and cannot be used as a method to provide background ventilation. At the FITSHOW 2013, we launch the first of the “Link Vent” range of patent applied for trickle ventilators. Contact Us. Glue acoustic foam on all the sides of the ducting and wait for it to dry. The latest additions to our acoustic offering is the Tunal Range which represents a series of on the frame and. The basic versions of this surface mounted aluminium slot ventilator are the shortest available capable of providing 5,000mm2 EA – while being equally suitable for domestic or non-domestic applications. Was the window firm aware that the windows were being fitted for noise reduction? We've just had some new windows in and asked them to quote for triple glazing for sound reduction. The use of W dB would just clarify they are measuring a power instead of an amplitude, which could mean the difference of a factor of 2 in the dB. Let us know how you want the parts delivered and we can arrange it! New in this edition are rendered CAD images to give a clear view of our products. With its built in updraught and various operating modes the TTF Slimline is suitable for all types of windows. Glidevale Ultravent Trickle Ventilator External Canopy Grille. This SlimVent & Canopy set from Yale is a part of our comprehensive range of trickle vents that enables window and door manufacturers to meet the requirements of the latest revisions to Building Regulations Approved Document F in England and Wales, and the Scottish Building Regulations October 2011 Standard 3. However, thanks to ECOSlide’s ingenious design, this isn’t an issue. 47 (-1;-2) dB. The trickle vent is constatntly closed due to the noise, will an acoustic vent be a significant improvement on a closed vent or only compared to an open basic vent. New higher equivalent area confirmed by the BRE. Acoustic energy saver humidity sensitive ventFramevent PVCu Ventilator. VAT. Extract fans in bathrooms and trickle vents in windows, to a central extract system, mechanical extract with fewer - sound attenuating – vents, or all the way to mechanical ventilation with The Freshvent has 2700 mm² equivalent area. Proposal It has been proposed to redevelop the former Maybloom Club site, Bostall Hill, London, SE2 0RA, toSlimline vent design has clever two stage opening. The new trickle vent regulations 2022 outline a series of criteria that must be met in order to achieve the correct amount of ventilation for a property. As I type this. Aluminium Trickle Vents. timber or woodaluminiumclad window systems. Available in 3 external cowling colours. RW Simons Ltd PVCu Trickle Vents range is called Framevent and is the latest addition to our extensive range of window ventilators. The stylish design of the EHA² air inlet enables perfect integration on most windows or rolling shutter casings. . If you already have pieces of egg crate pattern acoustic foam lying around, you can use them to plug your air vent. Q. 0800 970 4190. BPD Store stocks Passivent’s range of window tricklevents. The SM ULTIMA is a high quality, ABS acoustic window vent offering 2600mm2 EA airflow and providing a 40 db Dne W sound reduction in the. Acoustic Performance Dn,e,w to 42 dB (A) Colour - White. Available in standard, acoustically attenuated (for noisy install locations) and humidity sensitive (which open in response to high humidity events), the range is designed to meet even the toughest window trickle ventilation requirements. The acoustic Trickle Vents can also be powder coated to any standard RAL colour. RW Simon Slotvent Joiners . Trickle vents are activated with a single finger and provides passive. It is the shortest vent available to provide 5000mm² EA. These can be large and not aesthetically pleasing but are essential so as not to compromise the soundproofing of your acoustic glass. When the vent was removed, leaving just the opening, thereGreenwood Acoustic Vents. The latest addition to the Simon acoustic range. Obviously I would want to not fill the mains ones such as kitchen or the. SM Ultima 5000 mm2 EA. Trickle Vents; Titon SF Xtra 13 Vent 465 x 23mm - White; Zoom. Forum Member. This product is equally suitable for domestic and non-domestic applications. Lockmaster AutoEngage. Acoustic trickle vents. Enquire now, call 01805 623721. One of the major benefits is that it can be installed in the same. We explain what trickle vents are, why you need them, and how to choose products with a. Supplying developers, contractors and window manufacturers. Our aluminium vents (look for the reference VAL) have thermal seals to stop draughts when closed. By buying this product you can collect up to. Glidevale Protect offers a wide selection of roofing ventilation products suitable for all tile and slate roofs. Trickle vents must be left in the ‘open’ position to provide ventilation; Bear in mind that with uncontrolled ventilation, moist air and odours are spread around the home, often condensing in, or on, the fabric of the building. You would also need trickle vents to meet the permanent ventilation requirement as per the building regulations. Nineteen different Trickle Vents are reviewed from some of the performance aspects in this paper. The major design criteria of Trickle Vents are ventilation capacity, controllability, actuation, thermal insulation, air permeability, water tightness, climatic adaptation, security, and acoustic. They offer a more durable and reliable solution for house builders and fabricators, with better weathering and acoustic properties, a positive closure, and a more straightforward. Trickle vents ruin any acoustic performance gains. Acoustic Ventilation is used in rooms which require ventilation but still a high level of soundproofing. Surface mounted and screw fixed to the frame these window vents are great for general replacement where window vents are broken or missing. Here’s some useful advice on how to achieve compliance. Call us on 01536 511874 (8:30am-5pm weekdays) or email admin@rytons. 1,393 posts. co. £3. Ventilation is there to improve the quality of life inside houses and offices, which is why our vents – either trickle vents, through-frame vents, over-frame vents, or glazed-in vents – are designed to keep outside noise. Designed to be a functional part of a window that lets air circulate through your home, according to Building Regulations, trickle vents come highly recommended. Glidevale ALDB Acoustic Trickle Ventilator 8000mm. Acoustically damped pipe fitted around unit to reduce external sources of noise such as traffic. W. The SF Xtra is factory-made to standard sizes. 99. RRP from £34. bulk or standard packed (as sets or separate internal ventilators & external grills) mix and match colours. Yale Lockmaster KeyTurn . Ones which are. These trickle vents are screwed to the frame and can be operated by simple finger control. Trickle Vents by "Greenwood" we have these vents available in various colours and sizes. The Simon Framevent HF & HF + tricklevent range have been designed to help comply with. Acoustic trickle vents often involve totally different window frames or bolt on additional sections, I'd be surprised if you can find direct replacements. Browse 11 products that are ready to use on your projects. The Trickle Vent, Schüco VentoLife is an air purification device with a multistage filter which removes from the air up to 99. Window Vents & Trickle Vents | Zehnder Group UK | Zehnder Group UK Ltd Window vents, also known as trickle vents, are an effective way to improve indoor air quality in. 14. 78 (ex. View. Your Price Apply / Login. 89. 08 Inc. Provides an outstanding Dn,e,w;42dB. Acoustic lining reduces sound by 38dB with internal grille fully open and 39dB when closed. Spend £250+ to Get an Extra 5% off. (closed to trickle), max 40m 3/hr. Through Frame Trickle Ventilators, Acoustic Trickle Ventilators and Vent-A-Matic provide options to suit a range of needs. Trimvent® Select Xtra S13 is a surface mounted plastic slot ventilator that fits over a 13mm slot in a window and provides an Equivalent Area (EA) of 2000mm2, 4400mm2 or 5000mm2. Available in 3 standard sizes and six standard colours, the unit. The SM 1000 Trickle Vent is a slim, unobtrusive trickle vent. RW Simon FV Acoustic Vent 400mm 2500EA . wall. Skip to content +44 (0) 1732 850770 projects@passivent. 70 . From manufacturing the first dMEV classified product in the UK in 2007 to our latest release aligned to the 2021 UK Building Regulations, our approach has always been set on delivering a low-energy performance product which. VAT)*. Advice on Trickle Vents on New House UPVC Windows. Condensation reduction; If your home has a problem with. THIS AREA IS CURRENTLY BEING UPDATED – PLEASE FEEL FREE TO DOWNLOAD BROCHURE FOR FULL INFORMATION>. These may be required by building regulations in. Choice of unit size. News: Titon Appoints New CFO. VAT) Order Quantity. Share. Trimvent® Select Xtra S13 FOR USE ON PVCU, TIMBER OR ALUMINIUM WINDOWS. View. Add to Wishlist. Resources. The Greenwood Acoustic vents provides the perfect solution, delivering an effective level of air replacement while keeping out unwanted noise. Our 3. 55,000mm² equivalent area and space on the window profiles can sometimes be an issue. Surface mounted noise reducing acoustic trickle vent. Whatever your query, please get in touch. Titon offers a range of acoustic products for ventilation and sound attenuation, including acoustic trickle vents, slot vents, mechanical products and ducting. Sometimes the best way to achieve the best acoustic performance in new build applications is to upgrade from a traditional ventilation strategy, e. Replacement Locks. Installing acoustic vents can help to reduce the noise coming from trickle vents, making it easier for people to relax and enjoy their space. Glazed In: The trickle vent is fitted into the glazed area along the. Colour. Acoustic background ventilator for a habitable room. Let us know how you want the parts delivered and we can arrange it! New in this edition are rendered CAD images to give a clear view of our products. An alternative is to install acoustic trickle vents. 71 £ 8. Our 3. However, there are rooms in a home where they are of particular use. Our trickle ventilator products are available for delivery as. Visit our website now. Keep your trickle vents open. They are commonly operated by opening or closing a flap depending on the need for ventilation. £9. However, they are intended to be left in the open. 00. Internal hit & miss grille manually adjusted with an easy sliding. 125 months. £11. D n,e,w (C;Ctr) – Open position. Acoustic trickle vents are characterised by better sound insulation compared to standard ones. What are acoustic trickle vents? Our range of high-performing acoustic trickle vents for windows block out noise but let fresh air in to create a comfortable, well-ventilated environment that combats condensation. Achieves Building Regulations’ EA requirements. RW Simon Ltd has an extensive range of Trickle Vents ranging in all different sizes to help achieve the amount of free area or equivalent area required to naturally ventilate a building in order to conform to building regulations, our range includes both. You must have some form of ventilation, either trickle vents in the windows, acoustic trickle vents in the walls, or a heat recovery system. AirLiner: Extends from. In addition, we also offer our own trickle vents within Total Hardware’s exclusive range, Quantum. Rytons Super Acoustic Controllable LookRyt AirCore is a simple and efficient answer to background ventilation. Can be removed to allow access to and maintenance of device. BPD Store stocks Passivent’s range of window tricklevents. Reduces sound by 45 dB with internal grille fully open and 50 dB when closed (Dn,e,w). View Product. Technical Information. The RW Simon Ltd TTF Slimline window trickle ventilator is a through frame trickle ventilator that is a robust, yet stylish aluminium ventilator. Available in white or brown. if you have trickle vents in these rooms then they should be acoustic, otherwise you are circumventing the expensive windows you have just specified/fitted. FREE DELIVERY on orders over £600 (£500 ex. Yale Trickle Ventilators - Yale UK. Colour Name: White. The acoustic vent is installed into a timber packer, which is fitted and sealed on site and can achieve a sound reduction value of Dn,e,w (C; Ctr) = 40 (-1; -2) dB, and an equivalent free opening of. £5. The units are logarithmic, decibels (dB), so a factor of 30 would be 1,000 times below ambient acoustic noise (over some assumed frequency range). W. 400mm long with 2 x 13 x 162. 57 Ex. Provides acoustic attenuation to Dn,e,w 55dB (A) 2500mm2 equivalent area performance. Glidevale Ultravent Trickle Ventilator External Canopy Grille - White - External canopy grille provides weather protection and 4mm insect ingress protection. Passivent’s Acoustic Aircool range is available as both a window or wall ventilator. A surface mounted aluminium slot ventilator, the Titon SF Xtra Flat Fit Vent is ideal for new-builds or to be retro-fitted. VAT. Donald BSc (Hons) AMIOA T: 0330 043 1764 Page 4 of 24 1. Hybrid versions of these products provide part natural/part mechanical ventilation and operate in three modes – mixing, boost and passive. co. For example, if a window with a sound reduction of 35dB is used in conjunction with a background ventilator also giving a reduction of 35dB, the overall decrease will be somewhat less than 35dB. Read More. The 13/16” dimensions are always constant; therefore the body length is always 1-5/8” shorter than the overall length. Suitable for replacing vents in windows. Trickle Vents are designed to provide fresh air ventilation for improved in-home air quality while the window remains closed and secure. We are Closed 23rd - 26th December & 30th December - 1st January (Open as usual 27th 28th 29th December Back to normal Hours 2nd January 2024). Silenceair®offers a range of soundproof wall vents, ceiling vents and cross talk vents that allow air to circulate freely and silently through your building. com / 01206 713801 Product Product Code (L) Length (W) Width (P) Projection Closed-Open Free Area (mm2) Slot Detail SF Xtra 2500EA Vent only TA5220 425 23 10-24 4207 SF 418 Canopy only TA5005 418 23 27 5114 SF Xtra Sound Attenuator 2500EA Vent 25mm TA5221 464 35 37-51 3470Glidevale Fresh 90dB Acoustic Wall Vent – BIM Object Download. The SM 1000+ is a trickle vent with all the same great features of the SM 1000 – including slimline design, built-in insect grille and simple installation – but also comes with the added benefit of rod control operation. Welcome to the HandleStore range of trickle vents for the replacement of existing, tired, missing or broken slot vents found on double glazed windows. Buy online and collect in store in as little as 1 minute. Surface mounted slot ventilator. Restrictor with ventilation position. Glidevale TVUG25 External Canopy Grille – BIM Object. Classification Pr_30_59_94_90. 02 Please note the Vent Units or the Canopy Units can be fitted in conjunction with the Greenwood Acoustic window ventilator (White ) Quantity. The SM 1000+ is a slim, unobtrusive surface mounted window vent that offers trickle ventilation. Trickle Vents are designed to provide fresh air ventilation for improved in-home air quality while the window remains closed and secure. We had the double glazing firm come out that fitted the windows for something else so I. Verified 4 months ago . . Free postage. EAQ42W is an acoustic window vent suitable for new build and refurbishment and can be applied to most window profiles with add on sections. This product is equally suitable for domestic and non-domestic applications. Trickle Vents - Flush Fit (Brown - 300mm) £ 5. Trickle Ventilators Titon manufactures and supplies window and door hardware products ranging from background ventilators and window and door handles, to locking systems, hinges and restrictors. a background ventilator such as a trickle vent. 125mm Acoustic Core Ventilator with Hit & Miss. S13 2000 Internal Trickle Ventilator Clip Fix: TS1131751:. Our range of acoustic window trickle vents provide a cost effective solution to suit the needs of noise polluted sites. Suffix product code with:Our trickle vents have been tested for acoustic properties. Trickle facility to allow air ingress even when closed. Browse our range of Trickle Vents & Canopies, available at IronmongeryDirect at Low Trade Prices. Installing attic baffles can help reduce energy bills,. Resources. Concealed and surface-mounted. Reduces sound by 45 dB with internal grille fully open and 50 dB when closed (Dn,e,w). All new and replacement windows will need to meet these regulations or will fail the FENSA inspection, and will therefore not be eligible. Making a difference in Indoor Air Quality. The vents have an effective free area, in terms of how much air flows through, of around 4000 sq mm. Reattach the air vent covers and you. The link vent is our latest and most advanced trickle vent and the instructions are provided for the shorter 2500 (EQA) vents and its big brother the 5000 (EQA). Duco Acoustic Ventilators. Many homeowners, architects and double-glazing companies prefer to avoid trickle vents as they can affect a property’s overall aesthetics, energy efficiency and acoustic performance. Comes complete with Freshvent 100 db and Freshvent 100 Thermo db versions. Sizes: Length - 465mm Width - 23mm. stabilised. Lockmaster 21 . Acoustic trickle vents now make it possible to obtain planning permission for new developments that are situated near a busy road, train lines or an industrial site that would have been refused. Rytons are the leaders in vents for all applications and their acoustic performance is second to none. Available in 2500EA or 5000EA with the option of 1 or 2 Acoustic External Modules fabricators have a variety of solutions to achieve their required specifications. 5 year old house has trickle vents on every window, which let in a huge amount of cold air even when closed. Energy efficient, minimise heat loss. Hit & Miss: 271mm L x 95mm H. Air Brick: Terracotta, buff/sand, white, grey, blue/black, black, brown. Comes complete with Freshvent 100 db and Freshvent 100 Thermo db versions. AtomicRitual · 07/12/2022 18:18. Take some 3M spray adhesive and apply it to the flat side of one of the acoustic foam pieces. Any cooling of the internal temperature in winter from a trickle vent is marginal. RW Simon Trickle Vents. Add to basket. RW Simon Slotvent Joiners . Flush fit | White ABS Plastic | 300mm long x 20mm wide x 10mm deep (2,700 mm2 free area). Acoustic lining reduces sound by 38dB with internal grille fully open and 39dB when closed. We supply acoustic ventilation from leading. g. VAT. TAL4H&M- '9x3' Acoustic AirLiner® Set with Hit & Miss Ventilator (Up to 39dB Dn,e,w) Controllable air vent for background room ventilation. The acoustic attenuators come in three sizes; 25mm, 50mm and 75mm, which provide different dB reductions. 6300mm². Trickle ventilation system. Configurations and results. The noise the current ones let in . • Maintains the. It can be locked in the minimum as well as maximum flow position. Trickle Vents. These are hygro- or pressure-controlled devices, equipped with a connector and an acoustic hood. If a property is located in a noisy area, near a busy road or airport, a noise attenuating ventilator (acoustic vent) can be used. Glidevale Protect TVES4dB Acoustic Energy Saver Humidity Sensitive Trickle Vent - Trickle Vent . Trimvent® Select Xtra S16. Acoustic options with enhanced sound reduction up to 50dB. Over-head extract fan / trickle ventilator. The Acoustic Energy Saver Humidity Sensitive (TVES4dB) and the Acoustic Low Profile (TVALdB450 and (TVALdB800) reduce sound travelling through the vent, whilst allowing ventilation into the property. WHITE 400mm Trickle vents from just £3. RRP from £2. More information enquiries@titon. 894 The Crescent, Colchester CO4 9YQ United Kingdom. It also features 3 different airflow modes and an insect grille to keep. Background Ventilation is a key product for a healthy living environment. to the body to ensure acoustic performance is achieved. I am in a new build house (4 years old) and I am looking to improve the soundporoofing to the front of the house. As one of the market leaders in tile ventilator manufacture in the UK, Glidevale Protect’s range has been collated for over 35 years and includes hundreds of dedicated profiled tile ventilators matching almost. Decentralised Mechanical Ventilation Unit (dMEV) View. Please be vigilant of fraud/cyber crime. . uk info@titon. The XS13 is a direct replacement for the S13 range, using the same slot measurements but offering a much greater. #1. Buy Trickle Vents online - this how-to guide we will be showing you how to replace a Titon Trimvent Select Tr. The drawing they have provided is an over the frame vent, and not typical. Aquwall HY Products. The drawing they have provided is an over the frame vent, and not typical. 6300mm². Uses no electricity or mechanical power. uk info@titon. Your Price Apply / Login. They are situated at the top of windows and can be easily adjusted through the use of cords, rods or simply by hand. Nineteen different Trickle Vents are reviewed from some of the performance aspects in this paper. Checkout Now. Sound proofing with triple glazing. 78 (ex. In the closed position the slot trickle option provides upward defl ecting, draught free, ventilation up to 2500mm2/m (Open Area) Geometric Modular Sizes Geometric Equivalent Overall Overall Overall Open Area Area Slot Size Vent Length Hood Length 2000mm2 1705mm2 13mm x 160mm 240mm 205mm 3000mm2 2384mm2 13mm x 235mm 315mm. Sound reduction up to 50db D n,e,w. Acoustic Ventilation is used in rooms which require ventilation but still a high level of soundproofing. Here, you can find the fitting instructions for the Glazpart range of trickle vents used to deliver the required provision of back ground ventilation in dwellings. Addition of a wet room to an existing building: 5000mm2 EA. We also offer the acoustic window trickle vent range in a selection of anodised finishes. co. Available in standard, acoustically attenuated (for noisy install locations) and humidity sensitive (which open in response to high humidity events), the range is designed to meet even the toughest window trickle ventilation requirements. Directs airflow upwards avoiding draughts and discomfort. If you receive an email from our parent company Building Product Design Ltd, please check that the email address from the sender ends in '@buildingproductdesign. Our largest vent, the TVALdB800, is capable of sound reduction up to 42dB Dn,e,w. Dutch - Belgium; French - Belgium; Dutch - Netherlands“ Acoustic” trickle vents are widely. + VAT. The Freshvent has 2700 mm² equivalent area. Ventilation in windows and doors must extract excess water vapour, air pollutants and condensation. Your Price Apply / Login. In reply to Lewis and Stevie, Builder can use better trickle vents and there are Acoustic Trickle Vents available, if Builder will not come back a local glazing company should be able to help. Designed and developed in the UK, Yales SlotVent allows an appropriate amount of air to pass through the window, helping to remove stale air and reduce condensation and mould, as well as enabling people in cities or near busy roads to benefit from ventilation without having to open their windows. Unfortunately, opening windows or doors can also let in unwanted noise. VAT. Available in 2 sizes: This vent 2500EA - 250mm (L) x 25mm (H) x 70mm (D) Internal/86mm (D) External. VAT. Acoustic performance of 33 Db and an EA rating of 4600, the V4000 is great value and available from stock for next day delivery. View Product. Ventilating buildings is about more than just the exchange of air. The problem I'm having is I can hear everything outside, from neighbours talking to cars passing. It’s an awful solution to a very really problem. But yes you must have some form of ventilation, either trickle vents in the windows, acoustic trickle vents in the walls or a heat recovery system. The 2500EA and the 5000EA equivalent area vents are the smallest acoustic window vents on the market and achieve the best acoustic performance for window ventilators in the UK – up to 45dB (A) It is a simple and adaptable solution for windows in residential dwellings that have external noise issues or planning restrictions. Qty BPD Store. Lockmaster. White Window Trickle Vents Ventilation UPVC & Timber Windows (#182414592060) ob (361). 00 € 35. Trickle Vents - Flush Fit (White - 300mm) £ 5. Hit & Miss: 271mm L x 95mm H. 98, Chase CB £107. Extract fans in bathrooms and trickle vents in windows, to a central extract system, mechanical extract with fewer - sound attenuating – vents, or all the way to mechanical ventilation withby Renson Fabrications. - Enables secure, weather resistant ventilation with exclusion of. Units comprise of an aluminium outer frame joined to a seasoned hardwood timber surround. Your cart will contain total 27 points that can be converted into a voucher of £2. R. Add to basket. Glidevale ALDB Acoustic Trickle Ventilator 4500mm Add to Basket. 497mm (5000EA) 215mm (5000EA) 173. Titon Trickle Vent Trimvent S13 2700EA. Yeah, it might be the same mechanism as what they use for mufflers (in which you have a. Our ventilation hardware provides optimum levels of air ventilation, and have been designed with security and energy efficiency in mind. The trickle vent is essentially a slit in the frame, staggered on the inside and outside, with a cover that can be opened and closed. AC2. Enjoy fresh air indoors with window vents. Product Opening in Vent Slot Size Equivalent Air-flowframe/sash Dimensions. Acoustic Trickle vents. A trickle vent is a very small [quantify] opening in a window or other building envelope component to allow small amounts of ventilation in spaces intended to be naturally. VAT - Mainland UK Only (NB: Orders placed after 3pm Fri will be dispatched the. Greenwood Acoustic window ventilator (White ) Quantity. Equivalent area: 14,427–34,032 mm²/m. Our windows include trickle vents to provide ventilation and to comply with the latest. Spent ages reading about it and it seems that they make a huge difference in terms of noise. • Trickle vent • Acoustic trickle vent • Acoustic tile board • Shaped corners H All windows are supplied fully assembled and ready to install. Acoustic trickle vents: noise-reducing acoustic vents are also available for external windows, facilitating the flow of air in and out of a building, while helping to prevent the ingress of external noise. About this product. Using Trickle vent to reduce noise. FREE DELIVERY on. CLOSED. Four intermediate settings. Environmental Noise Assessment K. Our window vents are subtly integrated into your façade — and their acoustic damping comes as a bonus. hello@brookvent. Ventilation systems. You would have to research whether they would be suitable to retrofit to your windows. Finish (inner and outer). Ventilation systems. Titon SF Xtra 13 Vent 465 x 23mm - White. VAT. Order Before 9pm. Retro-fitted core ventilator with external cowl for background room ventilation. Downloads. Moisture Control Protect Your Windows and Frames. VAT.