{"product_id":"316-stainless-steel-round-marine-louver-vent","title":"4-Inch 316 Stainless Steel Round Marine Louver Vent – Mirror Polished","description":"\n\u003cdiv style=\"font-family: Arial, Helvetica, sans-serif; font-size: 16px; line-height: 1.7; color: #333333; width: 100%; box-sizing: border-box;\"\u003e\n\n  \u003ch2 style=\"font-size: 26px; line-height: 1.35; font-weight: 700; color: #222222; margin: 0 0 18px;\"\u003e\n    4-Inch 316 Stainless Steel Round Marine Louver Vent – Mirror Polished\n  \u003c\/h2\u003e\n\n  \u003cp style=\"margin: 0 0 16px;\"\u003e\n    Improve your boat's ventilation setup with this \u003cstrong style=\"font-weight: 700;\"\u003e4-inch round marine louver vent\u003c\/strong\u003e, made from 316 stainless steel with a high-gloss mirror-polished finish. Designed for surface mounting on compatible marine ventilation openings, this round stainless steel boat vent combines a slotted louver design with a clean, polished appearance for boat interiors and exterior applications where the vent is suitable.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin: 0 0 24px;\"\u003e\n    The \u003cstrong style=\"font-weight: 700;\"\u003e316 stainless steel construction\u003c\/strong\u003e offers corrosion resistance for marine environments, while the round louvered face provides a practical solution for ventilation installations on compatible boat surfaces. Three mounting holes around the outer edge allow the vent to be secured with suitable fasteners.\n  \u003c\/p\u003e\n\n  \u003ch3 style=\"font-size: 21px; line-height: 1.4; font-weight: 700; color: #222222; margin: 26px 0 12px;\"\u003e\n    Product Features\n  \u003c\/h3\u003e\n\n  \u003cul style=\"padding-left: 24px; margin: 0 0 24px;\"\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong style=\"font-weight: 700;\"\u003eMarine-Grade Material:\u003c\/strong\u003e Made from 316 stainless steel for corrosion resistance in marine environments.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong style=\"font-weight: 700;\"\u003eMirror-Polished Finish:\u003c\/strong\u003e Provides a bright, reflective appearance that complements stainless steel boat hardware.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong style=\"font-weight: 700;\"\u003eRound Louvered Design:\u003c\/strong\u003e Slotted louvers create a distinctive marine vent profile.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong style=\"font-weight: 700;\"\u003eSurface-Mount Installation:\u003c\/strong\u003e Three pre-drilled mounting holes allow installation on a compatible flat surface.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong style=\"font-weight: 700;\"\u003eDefined Mounting-Hole Size:\u003c\/strong\u003e Each mounting hole measures 3.5 mm in diameter; suitable 3 mm bolts or rivets may be used when compatible with the installation.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong style=\"font-weight: 700;\"\u003eVersatile Marine Application:\u003c\/strong\u003e Suitable for compatible boat ventilation openings, subject to the required opening dimensions and installation conditions.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3 style=\"font-size: 21px; line-height: 1.4; font-weight: 700; color: #222222; margin: 26px 0 12px;\"\u003e\n    Product Specifications\n  \u003c\/h3\u003e\n\n  \u003cdiv style=\"width: 100%; overflow-x: auto; margin: 0 0 18px;\"\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; border-spacing: 0; font-size: 15px; line-height: 1.6; border: 1px solid #dddddd;\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth style=\"width: 38%; padding: 12px; border: 1px solid #dddddd; background-color: #f5f5f5; text-align: left; font-weight: 700; color: #222222;\"\u003eSpecification\u003c\/th\u003e\n          \u003cth style=\"padding: 12px; border: 1px solid #dddddd; background-color: #f5f5f5; text-align: left; font-weight: 700; color: #222222;\"\u003eDetails\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eProduct Type\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003eRound Marine Louver Vent\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eMaterial\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003e316 Stainless Steel\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eShape\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003eRound\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eNominal Size\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003e4 Inch\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eSurface Finish\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003eHigh-Gloss Mirror Polish\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eVent Design\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003eSlotted Louver\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eMounting Type\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003eSurface Mount\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eNumber of Mounting Holes\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003e3\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eMounting Hole Diameter\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003e3.5 mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eSuggested Fastener Size\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003e3 mm bolts or rivets, subject to fit\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eFasteners Included\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003eNot included\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd; font-weight: 700;\"\u003eMain Application\u003c\/td\u003e\n          \u003ctd style=\"padding: 11px; border: 1px solid #dddddd;\"\u003eCompatible boat and marine ventilation installations\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cp style=\"margin: 0 0 24px; padding: 14px 16px; border-left: 4px solid #b7b7b7; background-color: #f7f7f7;\"\u003e\n    \u003cstrong style=\"font-weight: 700;\"\u003eImportant:\u003c\/strong\u003e Confirm the overall outside diameter, required opening size, mounting-hole positions and installation depth against the product dimension drawing before ordering. The nominal 4-inch size should not be assumed to equal the required cutout diameter.\n  \u003c\/p\u003e\n\n  \u003ch3 style=\"font-size: 21px; line-height: 1.4; font-weight: 700; color: #222222; margin: 26px 0 12px;\"\u003e\n    Applications\n  \u003c\/h3\u003e\n\n  \u003cp style=\"margin: 0 0 12px;\"\u003e\n    This 316 stainless steel round boat vent may be suitable for:\n  \u003c\/p\u003e\n\n  \u003cul style=\"padding-left: 24px; margin: 0 0 24px;\"\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003eMarine ventilation openings on compatible boat surfaces\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003eBoat cabin and compartment ventilation installations\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003eReplacement of an existing round louver vent with matching dimensions\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003eMarine hardware projects requiring a polished stainless steel vent cover\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"margin: 0 0 24px;\"\u003e\n    Compatibility depends on the installation location, ventilation requirements, available space and mounting dimensions. Please verify these details before purchasing.\n  \u003c\/p\u003e\n\n  \u003ch3 style=\"font-size: 21px; line-height: 1.4; font-weight: 700; color: #222222; margin: 26px 0 12px;\"\u003e\n    Installation Information\n  \u003c\/h3\u003e\n\n  \u003col style=\"padding-left: 24px; margin: 0 0 18px;\"\u003e\n    \u003cli style=\"margin-bottom: 9px;\"\u003eMeasure the available mounting surface and confirm the vent's overall dimensions.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 9px;\"\u003eCheck the required ventilation opening and ensure the vent design is suitable for the intended application.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 9px;\"\u003eAlign the three mounting holes with the mounting surface.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 9px;\"\u003eSelect compatible 3 mm bolts or rivets and appropriate sealing materials for the installation.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 9px;\"\u003eSecure the vent without overtightening the fasteners, and verify that the installation is stable.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003cp style=\"margin: 0 0 24px;\"\u003e\n    \u003cstrong style=\"font-weight: 700;\"\u003eFasteners are not included.\u003c\/strong\u003e The correct fastener type and length depend on the mounting material and thickness.\n  \u003c\/p\u003e\n\n  \u003ch3 style=\"font-size: 21px; line-height: 1.4; font-weight: 700; color: #222222; margin: 26px 0 12px;\"\u003e\n    Care and Maintenance\n  \u003c\/h3\u003e\n\n  \u003cp style=\"margin: 0 0 16px;\"\u003e\n    Rinse the stainless steel vent with fresh water after exposure to salt spray or marine deposits. Clean it with a soft cloth and a suitable stainless steel cleaner, following the cleaner manufacturer's instructions. Avoid abrasive materials that may scratch the mirror-polished finish.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin: 0 0 24px;\"\u003e\n    Although 316 stainless steel offers good corrosion resistance, actual performance depends on exposure conditions, installation, maintenance and contact with other materials.\n  \u003c\/p\u003e\n\n  \u003ch3 style=\"font-size: 21px; line-height: 1.4; font-weight: 700; color: #222222; margin: 26px 0 16px;\"\u003e\n    Frequently Asked Questions\n  \u003c\/h3\u003e\n\n  \u003cdiv style=\"margin: 0 0 18px;\"\u003e\n    \u003ch4 style=\"font-size: 17px; line-height: 1.5; font-weight: 700; color: #222222; margin: 0 0 6px;\"\u003e\n      Is this a 4-inch stainless steel boat vent?\n    \u003c\/h4\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      This product is listed as a nominal 4-inch round marine louver vent. Check the product dimension drawing for the actual outside diameter, opening requirements and mounting-hole positions before ordering.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin: 0 0 18px;\"\u003e\n    \u003ch4 style=\"font-size: 17px; line-height: 1.5; font-weight: 700; color: #222222; margin: 0 0 6px;\"\u003e\n      What material is used for this marine vent?\n    \u003c\/h4\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      The vent is made from 316 stainless steel. This grade is commonly used for marine hardware because of its corrosion resistance. Regular cleaning is still recommended, especially in saltwater environments.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin: 0 0 18px;\"\u003e\n    \u003ch4 style=\"font-size: 17px; line-height: 1.5; font-weight: 700; color: #222222; margin: 0 0 6px;\"\u003e\n      How many mounting holes does the vent have?\n    \u003c\/h4\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      The vent has three mounting holes, each measuring 3.5 mm in diameter. Suitable 3 mm bolts or rivets may be used if they fit the mounting surface and installation requirements.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin: 0 0 18px;\"\u003e\n    \u003ch4 style=\"font-size: 17px; line-height: 1.5; font-weight: 700; color: #222222; margin: 0 0 6px;\"\u003e\n      Are mounting bolts or rivets included?\n    \u003c\/h4\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      No. Mounting fasteners are not included. Choose fasteners that are compatible with the mounting material, thickness and marine installation conditions.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin: 0 0 18px;\"\u003e\n    \u003ch4 style=\"font-size: 17px; line-height: 1.5; font-weight: 700; color: #222222; margin: 0 0 6px;\"\u003e\n      Can this round louver vent replace my existing boat vent?\n    \u003c\/h4\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      It may be suitable if the existing vent has compatible outside dimensions, opening requirements, mounting-hole positions and installation depth. Compare the product drawing with your existing vent before ordering.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin: 0 0 18px;\"\u003e\n    \u003ch4 style=\"font-size: 17px; line-height: 1.5; font-weight: 700; color: #222222; margin: 0 0 6px;\"\u003e\n      Is the mirror-polished finish suitable for marine use?\n    \u003c\/h4\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      The mirror-polished finish provides a bright, reflective appearance suitable for marine hardware applications. The 316 stainless steel construction provides corrosion resistance, but no stainless steel finish is completely immune to staining or corrosion under all conditions.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"margin: 0 0 24px;\"\u003e\n    \u003ch4 style=\"font-size: 17px; line-height: 1.5; font-weight: 700; color: #222222; margin: 0 0 6px;\"\u003e\n      Can this vent be used for every type of boat ventilation?\n    \u003c\/h4\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      Not necessarily. Confirm that the vent's dimensions, louver design and airflow requirements suit the intended location. Do not assume it is suitable for engine exhaust, fuel-system ventilation or other specialized applications without confirming the manufacturer's specifications and applicable requirements.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"padding: 18px; margin: 26px 0 0; background-color: #f5f5f5; border: 1px solid #e5e5e5; border-radius: 4px;\"\u003e\n    \u003ch3 style=\"font-size: 20px; line-height: 1.4; font-weight: 700; color: #222222; margin: 0 0 10px;\"\u003e\n      Before You Order\n    \u003c\/h3\u003e\n    \u003cp style=\"margin: 0;\"\u003e\n      Please review the product dimensions and mounting requirements to ensure compatibility with your boat. If you are replacing an existing vent, compare the mounting-hole layout and opening size before purchase.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n","brand":"Airowmarine","offers":[{"title":"4-Inch","offer_id":50694457950278,"sku":"AIR-3SS-VENT-2ZZ-4IN","price":14.4,"currency_code":"USD","in_stock":true},{"title":"5-Inch","offer_id":50694457983046,"sku":"AIR-3SS-VENT-2ZZ-5IN","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/5710\/8550\/files\/316-stainless-steel-round-marine-louver-vent_6c32481dd24a4a4d94730af1c11c36ae.webp?v=1792577298","url":"https:\/\/airowmarine.com\/products\/316-stainless-steel-round-marine-louver-vent","provider":"AirowMarine","version":"1.0","type":"link"}