{"product_id":"sea-dog-stainless-steel-louver-vent-12-7-8-x-4-1-2-in","title":"Sea-Dog Stainless Steel Louver Vent 12-7\/8 x 4-1\/2 in","description":"\u003cp class=\"nvn-hero\"\u003eThe Sea-Dog stainless steel louver vent keeps air moving through the spaces below your deck without letting spray or rain follow it in. At 12-7\/8 inches long and 4-1\/2 inches wide, it's a clean, corrosion-resistant fix for stale lockers, engine boxes, and cabins. Five angled louvers do the work quietly.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eStale air is one of those problems you don't notice until you open a locker and get hit with that damp, closed-up smell. This Sea-Dog louver vent fixes it. It's a stainless steel ventilator with five angled slots that let air flow in and out of an enclosed space while the downward pitch of each louver keeps rain and deck spray from riding along with it. Passive ventilation, no moving parts, nothing to wire in.\u003c\/p\u003e\n\u003cp\u003eThe panel measures 12-7\/8 inches long by 4-1\/2 inches wide, so it covers a good amount of area without eating up a whole bulkhead. Stainless steel is the right call for a part that lives out in salt air. It won't rust streaks down your gelcoat the way a cheaper vent will, and it keeps that bright finish for years. You get one vent per package.\u003c\/p\u003e\n\u003cp\u003eWhere does it go? Anywhere trapped air causes trouble. Engine compartments that run hot. Anchor lockers that never seem to dry out. Cabins, heads, and battery boxes that need a steady exchange of air to stay fresh and keep condensation down. Boaters also use these on livewells and storage compartments where moisture builds up. Even a boat that sits on a trailer through the off-season breathes easier with a vent that lets a closed hull dry out. Cut the opening to match, drop it in, and fasten it through the mounting holes. It's a straightforward afternoon job for most owners.\u003c\/p\u003e\n\u003cp\u003eBecause it's a fixed louver, there's no cover to close and nothing that'll seize up on you mid-season. That's the trade. You get constant airflow and a part that just works, but it isn't a sealed vent you can shut down in heavy weather. For most below-deck spaces that need to breathe, that's exactly what you want. If you're replacing a tired plastic vent or adding ventilation to a compartment that's been running muggy, this is a clean, honest upgrade that'll outlast the boat around it.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eStainless steel construction resists salt-air corrosion and won't streak rust onto surrounding gelcoat\u003c\/li\u003e\n  \u003cli\u003eFive angled louvers move air passively while the downward pitch sheds rain and spray\u003c\/li\u003e\n  \u003cli\u003e12-7\/8 inch length by 4-1\/2 inch width covers a wide opening without dominating a bulkhead\u003c\/li\u003e\n  \u003cli\u003eNo moving parts and nothing to wire in, airflow starts the moment it's mounted\u003c\/li\u003e\n  \u003cli\u003eFixed louver design suits bulkheads, lockers, engine boxes, and cabin sides\u003c\/li\u003e\n  \u003cli\u003eSold as a single vent, manufacturer part number 331290-3\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Sea-Dog reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is this louver vent used for?\u003c\/summary\u003e\n    \u003cp\u003eIt ventilates enclosed spaces below deck. Boaters install it on engine compartments, anchor lockers, cabins, heads, battery boxes, and storage compartments to keep air moving and cut down on trapped moisture and condensation.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat size is the vent?\u003c\/summary\u003e\n    \u003cp\u003eThe panel is 12-7\/8 inches long by 4-1\/2 inches wide with five louvered slots. Cut your opening to match before mounting.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it really stainless steel?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's built from stainless steel, so it resists salt-air corrosion and holds its bright finish without rusting streaks onto the surrounding surface.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it keep water out?\u003c\/summary\u003e\n    \u003cp\u003eThe louvers are angled downward to shed rain and deck spray while air still flows through. It's a passive vent, not a sealable one, so it isn't meant to close off a space in heavy weather.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I install it?\u003c\/summary\u003e\n    \u003cp\u003eCut an opening to fit the vent, set it in place, and fasten it through the mounting holes. It's a straightforward job for most owners with basic tools.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow many vents come in the package?\u003c\/summary\u003e\n    \u003cp\u003eOne. This part number is sold as a single vent.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eLouver Vent; 12-7\/8 Inch Length x 4-1\/2 Inch Width; Stainless Steel; Single\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSea-Dog\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e331290-3\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e035514331517\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e12-7\/8 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e4-1\/2 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLouver Slots\u003c\/th\u003e\n\u003ctd\u003e5-Slot\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVent Style\u003c\/th\u003e\n\u003ctd\u003eLouvered Ventilator\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is this louver vent used for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It ventilates enclosed spaces below deck. Boaters install it on engine compartments, anchor lockers, cabins, heads, battery boxes, and storage compartments to keep air moving and cut down on trapped moisture and condensation.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What size is the vent?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The panel is 12-7\/8 inches long by 4-1\/2 inches wide with five louvered slots. Cut your opening to match before mounting.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it really stainless steel?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's built from stainless steel, so it resists salt-air corrosion and holds its bright finish without rusting streaks onto the surrounding surface.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will it keep water out?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The louvers are angled downward to shed rain and deck spray while air still flows through. It's a passive vent, not a sealable one, so it isn't meant to close off a space in heavy weather.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I install it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Cut an opening to fit the vent, set it in place, and fasten it through the mounting holes. It's a straightforward job for most owners with basic tools.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How many vents come in the package?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"One. This part number is sold as a single vent.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Sea-Dog","offers":[{"title":"Default Title","offer_id":45072354541661,"sku":"2009224","price":48.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_5a608bd4-a7c0-4507-920a-961eb9987b8f.jpg?v=1789740867","url":"https:\/\/nvnmarine.com\/products\/sea-dog-stainless-steel-louver-vent-12-7-8-x-4-1-2-in","provider":"NVN Marine","version":"1.0","type":"link"}