{"product_id":"s-p-crvb-4-500n-500mm-roof-mounted-ventilation-fan","title":"S\u0026P CRVB\/4-500N 500mm Roof-Mounted Ventilation Fan","description":"\u003cp data-start=\"392\" data-end=\"1001\"\u003eThe \u003cstrong data-start=\"396\" data-end=\"450\"\u003eS\u0026amp;P CRVB\/4-500N 500mm Roof-Mounted Ventilation Fan\u003c\/strong\u003e is designed for efficient air extraction in commercial and industrial buildings. It features a vertical discharge centrifugal design that removes heat, smoke, and stale air effectively from ventilation systems. The fan includes a galvanized steel mounting base and a spun aluminium weatherproof cowl for durability in outdoor environments. Equipped with a backward curved centrifugal impeller and external rotor motor, it delivers high airflow performance with low maintenance and reliable long-term operation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1003\" data-end=\"1006\"\u003e\n\u003ch2 data-section-id=\"1yf6rbi\" data-start=\"1008\" data-end=\"1021\"\u003eMaterial\u003c\/h2\u003e\n\u003cul data-start=\"1022\" data-end=\"1251\"\u003e\n\u003cli data-section-id=\"1sjbvp6\" data-start=\"1022\" data-end=\"1056\"\u003e\n\u003cp data-start=\"1024\" data-end=\"1056\"\u003eGalvanized steel mounting base\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"y259x4\" data-start=\"1057\" data-end=\"1093\"\u003e\n\u003cp data-start=\"1059\" data-end=\"1093\"\u003eSpun aluminium weatherproof cowl\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17azbc6\" data-start=\"1094\" data-end=\"1144\"\u003e\n\u003cp data-start=\"1096\" data-end=\"1144\"\u003eAluminium backward-curved centrifugal impeller\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"34rbxk\" data-start=\"1145\" data-end=\"1172\"\u003e\n\u003cp data-start=\"1147\" data-end=\"1172\"\u003eExternal rotor AC motor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"s3bo9o\" data-start=\"1173\" data-end=\"1251\"\u003e\n\u003cp data-start=\"1175\" data-end=\"1251\"\u003eCorrosion-resistant metal components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Direct Duct Supplies","offers":[{"title":"Default Title","offer_id":57349865668933,"sku":null,"price":2413.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1037\/5168\/0325\/files\/S_PCRVB4-500N500mmRoof-MountedVentilationFan.png?v=1773183287","url":"https:\/\/directductsupplies.com\/products\/s-p-crvb-4-500n-500mm-roof-mounted-ventilation-fan","provider":"Direct Duct Supplies","version":"1.0","type":"link"}