{"product_id":"odp-7410426","title":"3540 - Lambro 4-In. ABS Plastic Roof Exhaust Vent with Damper and Removable Screen, Black, 3540","description":"\u003cp\u003eLambro 4-In. ABS Plastic Roof Exhaust Vent with Damper and Removable Screen, Black, 3540\u003c\/p\u003e\u003cp\u003eThe Lambro 4-In. ABS Plastic Roof Exhaust Vent is ideal for venting through the roof. It features a damper and removable hinged screen (screen should be removed for clothes dryer applications) that prevents outside elements and air from entering the vent. The damper seals the vent opening when the clothes dryer or bath fan is not running because no exhaust air exits the vent. When the clothes dryer or bath fan operates, the exhaust air pressure pushes the damper to let the exhaust air escape from the vent. Warning: use only on shingled roof installations. The exhaust vent is for new and replacement installations. The vent frame comes with 6 predrilled nail holes to secure the vent to the roof. When using the vent to exhaust a clothes dryer, check the inside of the vent regularly to prevent lint buildup. The vent's manufacturing material is ABS (Acrylonitrile Butadiene Styrene) with a UV additive to prevent premature fading caused by sunlight. It would be best to prep the vent before painting it; plastic paint is recommended to effectively paint the plastic vent. Make sure to check local building codes before installation.  Mounts over existing 4-in. openings  4-in. collar molded to the base; 1.5 in. in length  Roof cap is for shingle roof installations only  When used for clothes dryer venting, remove included hinged screen  Maximum exhaust airflow - minimum back pressure  Designed to prevent leaks with proper installation  Opening and closing damper prevents outside elements from entering vent  Removable hinged screen prevents birds from nesting inside of vent  Made of ABS (Acrylonitrile Butadiene Styrene) material; UV inhibitor is used to help prevent the premature fading of vent  Predrilled nail installation holes  Plastic vent is paintable when prepped before painting - plastic paint recommended  Installation nails or screws not included  4-in. collar molded to the base\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMfr part #:\u003c\/strong\u003e 3540\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Lambro Industries Inc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit \/ pack:\u003c\/strong\u003e EA\/1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of origin:\u003c\/strong\u003e US\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lambro Industries Inc","offers":[{"title":"Default Title","offer_id":44404472709179,"sku":"7410426","price":26.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/3116\/5755\/files\/1_0f758e04-85b3-4865-a72a-cbcab791a759.jpg?v=1791439038","url":"https:\/\/guevaraofficesupplies.com\/products\/odp-7410426","provider":"Guevara Office Supplies","version":"1.0","type":"link"}