{"product_id":"swc-wall-cowl","title":"Elta SWC Wall Cowl","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eSWC Wall Cowl\u003c\/h2\u003e\n\u003cp\u003eThe SWC Wall Cowl is a simple external weather cowl designed to protect fan openings from prevailing weather conditions while keeping airflow resistance low. It is a neat choice for external wall terminations where you want a durable finish, an integrated bird screen and a clean looking installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSelect models available for next day delivery.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather protection:\u003c\/strong\u003e helps protect fan openings from prevailing weather conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow resistance:\u003c\/strong\u003e designed to minimise resistance to airflow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGRP construction:\u003c\/strong\u003e manufactured from GRP with Goose Wing Grey colour impregnated into the gel coat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBird screen included:\u003c\/strong\u003e integral bird screen in galvanised mesh\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSizes and dimensions\u003c\/h3\u003e\n\u003cp\u003eChoose the wall cowl based on the fan size it is serving, then confirm A, B and C dimensions for the external wall space available. Dimensions shown are in mm.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct code\u003c\/th\u003e\n\u003cth\u003eA (mm)\u003c\/th\u003e\n\u003cth\u003eB (mm)\u003c\/th\u003e\n\u003cth\u003eC (mm)\u003c\/th\u003e\n\u003cth\u003eGrille area (m²)\u003c\/th\u003e\n\u003cth\u003eWeight (kg)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSWC25\/31\u003c\/td\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003ctd\u003e410\u003c\/td\u003e\n\u003ctd\u003e325\u003c\/td\u003e\n\u003ctd\u003e0.088\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSWC35\/40\u003c\/td\u003e\n\u003ctd\u003e610\u003c\/td\u003e\n\u003ctd\u003e510\u003c\/td\u003e\n\u003ctd\u003e390\u003c\/td\u003e\n\u003ctd\u003e0.140\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSWC45\/50\u003c\/td\u003e\n\u003ctd\u003e755\u003c\/td\u003e\n\u003ctd\u003e645\u003c\/td\u003e\n\u003ctd\u003e470\u003c\/td\u003e\n\u003ctd\u003e0.217\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSWC56\/63\u003c\/td\u003e\n\u003ctd\u003e935\u003c\/td\u003e\n\u003ctd\u003e815\u003c\/td\u003e\n\u003ctd\u003e555\u003c\/td\u003e\n\u003ctd\u003e0.345\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDesign note: allow for pressure loss\u003c\/h3\u003e\n\u003cp\u003eA wall cowl introduces additional pressure loss. Determine the pressure loss at your required flow rate using the pressure drop curve, add this value to your system design pressure, then verify the fan selection can accommodate the extra pressure loss.\u003c\/p\u003e\n\u003ch3\u003eSelection tip\u003c\/h3\u003e\n\u003cp\u003eStart with the fan size, select the matching SWC product code, then confirm the dimensional envelope plus grille area for the required duty. On replacement work, checking A, B and C first avoids clashes with existing wall openings plus surrounding finishes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4597\/1631\/files\/download-datasheets-banner.png?v=1760521797\"\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 20.4379%;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4597\/1631\/files\/Wall-Cowl.pdf?v=1770638725\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4597\/1631\/files\/pdf-download-icon.png?v=1760521798\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4151\/5237\/files\/Acoustic_Mat_1.pdf?v=1709633062\" title=\"ODE Starflex Loft Roll (100mm \u0026amp; 200mm)\"\u003e\u003c\/a\u003e\u003ca title=\"Lunaflex Ductwrap Data Sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4151\/5237\/files\/epd-certificate-glasswool-44_1.pdf?v=1709632546\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4151\/5237\/files\/ODE_Duct-wrap_Datasheet.pdf?v=1709630634\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 78.1023%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong data-start=\"2969\" data-end=\"3005\"\u003eProduct Data and Dimension Sheet\u003c\/strong\u003e\u003cbr data-start=\"3005\" data-end=\"3008\"\u003eDimensions, grille areas plus weights for SWC wall cowl sizes, including GRP construction details and integral galvanised mesh bird screen. Includes pressure drop curve guidance to support correct fan selection. Click here to download the SWC wall cowl data sheet.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0648\/4597\/1631\/files\/Wall-Cowl.pdf?v=1770638725\"\u003e\u003cstrong\u003eClick here to download the full data, performance and dimension sheet.\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eLooking to specify or purchase?\u003c\/strong\u003e \u003ca href=\"https:\/\/buyventilation.co.uk\/collections\/heat-recovery-units\"\u003e\u003cstrong\u003eExplore our full range of heat recovery ventilation units\u003c\/strong\u003e\u003c\/a\u003e or contact Buy Ventilation for expert guidance on selecting the right system for your project.\u003c\/p\u003e\n\u003cp\u003e\u003c!-- Sources: :contentReference[oaicite:0]{index=0} --\u003e\u003c\/p\u003e","brand":"BuyVentilation","offers":[{"title":"To Suit 250\/315mm Fans","offer_id":56320175079810,"sku":null,"price":209.95,"currency_code":"GBP","in_stock":true},{"title":"To Suit 350\/400mm Fans","offer_id":56462793638274,"sku":null,"price":246.5,"currency_code":"GBP","in_stock":true},{"title":"To Suit 450\/500mm Fans","offer_id":56462793671042,"sku":null,"price":317.9,"currency_code":"GBP","in_stock":true},{"title":"To Suit 560\/630mm Fans","offer_id":56462793703810,"sku":null,"price":414.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0648\/4597\/1631\/files\/wall_cowl_01.png?v=1770384546","url":"https:\/\/buyventilation.co.uk\/products\/swc-wall-cowl","provider":"Buy Ventilation","version":"1.0","type":"link"}