Boat Vents

Vents
  • Sea Dog® - 9-1/8" L x 4-5/8" W Stainless Steel Rectangular 3 Slot Louver Vent, Bulk
    Sea Dog®9-1/8" L x 4-5/8" W Stainless Steel Rectangular 3 Slot Louver Vent, Bulk (331400)
    0
    # mpn4655556027
    9-1/8" L x 4-5/8" W Stainless Steel Rectangular 3 Slot Louver Vent , Bulk (331400) by Sea Dog®. These Louvered Vents are designed to promote air circulation and prevent mold, mildew, and unpleasant odors. Ideal for cabin doors, lockers,...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $12.39
  • Sea Dog® - 9-1/8" L x 4-5/8" W Stainless Steel Rectangular 3 Slot Louver Vent, Display
    Sea Dog®9-1/8" L x 4-5/8" W Stainless Steel Rectangular 3 Slot Louver Vent, Display (331400-1)
    0
    # mpn4655556028
    9-1/8" L x 4-5/8" W Stainless Steel Rectangular 3 Slot Louver Vent , Display (331400-1) by Sea Dog®. These Louvered Vents are designed to promote air circulation and prevent mold, mildew, and unpleasant odors. Ideal for cabin doors,...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $16.41
  • T-H Marine® - 1-5/8" L x 1-1/2" W x 7/16" H Stainless Steel Clam Shell Vent
    T-H Marine®1-5/8" L x 1-1/2" W x 7/16" H Stainless Steel Clam Shell Vent (CSS-1SS-DP)
    0
    # mpn4684031471
    1-5/8" L x 1-1/2" W x 7/16" H Stainless Steel Clam Shell Vent (CSS-1SS-DP) by T-H Marine®. These clamshells are great for routing cables or wires through a hole or for covering thru-hull openings to shield water spray. They are also...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $5.15
  • T-H Marine® - 1-5/8" L x 1-1/2" W x 7/16" H White Plastic Clam Shell Vent
    T-H Marine®1-5/8" L x 1-1/2" W x 7/16" H White Plastic Clam Shell Vent (CSS-2-DP)
    0
    # mpn4478382644
    1-5/8" L x 1-1/2" W x 7/16" H White Plastic Clam Shell Vent (CSS-2-DP) by T-H Marine®. These super-strong clam shells are an economical and attractive alternative for metal clam shells. These clam shells are great for routing cables or...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $6.61
  • Sea Dog® - 15-1/2" L x 2" W Black Polypropylene Collector Box for One 4" Hoses
    Sea Dog®15-1/2" L x 2" W Black Polypropylene Collector Box for One 4" Hoses (331204)
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    # mpn4655556024
    15-1/2" L x 2" W Black Polypropylene Collector Box for One 4" Hoses (331204) by Sea Dog®. These Collector Boxes are designed to be used in conjunction with a louvered vent to facilitate air intake and exhaust. For use with either the...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $5.57
  • Sea Dog® - 15-1/2" L x 2" W Black Polypropylene Collector Box for Two 3" Hoses
    Sea Dog®15-1/2" L x 2" W Black Polypropylene Collector Box for Two 3" Hoses (331203)
    0
    # mpn4655556023
    15-1/2" L x 2" W Black Polypropylene Collector Box for Two 3" Hoses (331203) by Sea Dog®. These Collector Boxes are designed to be used in conjunction with a louvered vent to facilitate air intake and exhaust. For use with either the...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $5.57
  • Sea Dog® - 2-3/4" D Black Plastic Flush Thru Vent
    Sea Dog®2-3/4" D Black Plastic Flush Thru Vent (337326-1)
    0
    # mpn1589915268
    2-3/4" D Black Plastic Flush Thru Vent (337326-1) by Sea Dog®. These Flush Thru Vent is designed for cabin or bilge ventilation. This product is made of high-quality materials to serve you for years to come. Designed using...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $3.83
  • Sea Dog® - 3" D x 7-3/4" H White Plastic Standard Snap-On Cowl Vent
    Sea Dog®3" D x 7-3/4" H White Plastic Standard Snap-On Cowl Vent (727137-3)
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    # mpn4479320353
    3" D x 7-3/4" H White Plastic Standard Snap-On Cowl Vent (727137-3) by Sea Dog®. Standard Cowl Vents are designed for air intake or cabin ventilation when used in conjunction with a dorade box. Great for bilge ventilation with or...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $37.31
  • Sea Dog® - 3" D x 7-3/4" H White/Red Plastic Standard Snap-On Cowl Vent
    Sea Dog®3" D x 7-3/4" H White/Red Plastic Standard Snap-On Cowl Vent (727135-3)
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    # mpn4479319793
    3" D x 7-3/4" H White/Red Plastic Standard Snap-On Cowl Vent (727135-3) by Sea Dog®. Standard Cowl Vents are designed for air intake or cabin ventilation when used in conjunction with a dorade box. Great for bilge ventilation with or...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $37.77
  • Sea Dog® - 4" D Stainless Steel Round 5 Slot Louver Vent
    Sea Dog®4" D Stainless Steel Round 5 Slot Louver Vent (331424-1)
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    # mpn4655556107
    4" D Stainless Steel Round 5 Slot Louver Vent by Sea Dog®. These Round Louvered Vents allow air in while keeping water out. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $6.75
  • Sea Dog® - 4" D Stainless Steel Round Butterfly Vent with Center Knob
    Sea Dog®4" D Stainless Steel Round Butterfly Vent with Center Knob (331440-1)
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    # mpn4655556108
    4" D Stainless Steel Round Butterfly Vent with Center Knob by Sea Dog®. These Butterfly Vents feature a Center Knob that allows for easy adjustment of the opening. Promotes air circulation and prevents mold, mildew, and associated...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $12.77
  • Sea Dog® - 4" D x 5-1/8" H White Plastic Low Profile Snap-On Cowl Vent
    Sea Dog®4" D x 5-1/8" H White Plastic Low Profile Snap-On Cowl Vent (727142-3)
    0
    # mpn4479319781
    4" D x 5-1/8" H White Plastic Low Profile Snap-On Cowl Vent (727142-3) by Sea Dog®. Low Profile Cowl Vents are designed for air intake or cabin ventilation when used in conjunction with a dorade box. Great for bilge ventilation with or...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $37.07
  • Sea Dog® - 4" D x 5-1/8" H White/Red Plastic Low Profile Snap-On Cowl Vent
    Sea Dog®4" D x 5-1/8" H White/Red Plastic Low Profile Snap-On Cowl Vent (727140-3)
    0
    # mpn4479320556
    4" D x 5-1/8" H White/Red Plastic Low Profile Snap-On Cowl Vent (727140-3) by Sea Dog®. Low Profile Cowl Vents are designed for air intake or cabin ventilation when used in conjunction with a dorade box. Great for bilge ventilation with...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $37.94
  • Sea Dog® - 4" D x 9-1/4" H White Plastic Standard Snap-On Cowl Vent
    Sea Dog®4" D x 9-1/4" H White Plastic Standard Snap-On Cowl Vent (727147-3)
    0
    # mpn4479320738
    4" D x 9-1/4" H White Plastic Standard Snap-On Cowl Vent by Sea Dog®. Standard Cowl Vents are designed for air intake or cabin ventilation when used in conjunction with a dorade box. Great for bilge ventilation with or without a blower....
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $46.59
  • Sea Dog® - 5" D Stainless Steel Mushroom Vent
    Sea Dog®5" D Stainless Steel Mushroom Vent (727520-3)
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    # mpn4684523389
    5" D Stainless Steel Mushroom Vent (727520-3) by Sea Dog®. These vents provide passive ventilation for your cabin by reducing stagnant air, mold and mildew without opening a hatch. Fully adjustable with a manual knob. Translucent center...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $57.42
  • Sea Dog® - 5" D Stainless Steel Round Butterfly Vent with Center Knob
    Sea Dog®5" D Stainless Steel Round Butterfly Vent with Center Knob (331450-1)
    0
    # mpn4655556109
    5" D Stainless Steel Round Butterfly Vent with Center Knob by Sea Dog®. These Butterfly Vents feature a Center Knob that allows for easy adjustment of the opening. Promotes air circulation and prevents mold, mildew, and associated...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $19.49
  • Sea Dog® - 5-3/4" L x 4-13/16" W x 2-5/16" H Stainless Steel Cowl Vent
    Sea Dog®5-3/4" L x 4-13/16" W x 2-5/16" H Stainless Steel Cowl Vent (331330-1)
    0
    # mpn4655556104
    5-3/4" L x 4-13/16" W x 2-5/16" H Stainless Steel Cowl Vent by Sea Dog®. Cowl Vent provides fresh air below decks by trapping air that comes across the top deck and forcing it into your boat's cabin or interior. Constructed of corrosion...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $52.62
  • Sea Dog® - 5-7/8" L x 4-7/16" W x 3-5/16" H Stainless Steel/Plastic Cowl Vent with Base
    Sea Dog®5-7/8" L x 4-7/16" W x 3-5/16" H Stainless Steel/Plastic Cowl Vent with Base (331320-1)
    0
    # mpn4479320889
    5-7/8" L x 4-7/16" W x 3-5/16" H Stainless Steel/Plastic Cowl Vent with Base by Sea Dog®. Cowl Vents provide fresh air below decks by trapping air that comes across the top deck and forcing it into your boat's cabin interior. Designed...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $39.63
  • Sea Dog® - 9-1/8" L x 4-5/8" W Stainless Steel Oval 7 Slot Louver Vent, Display
    Sea Dog®9-1/8" L x 4-5/8" W Stainless Steel Oval 7 Slot Louver Vent, Display (331405-1)
    0
    # mpn4655556029
    9-1/8" L x 4-5/8" W Stainless Steel Oval 7 Slot Louver Vent , Display (331405-1) by Sea Dog®. This Oval Louvered Vent is designed to promote air circulation and prevent mold, mildew, and unpleasant odors. Ideal for cabin doors, lockers,...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $18.39
  • Airlette® - 4" D x 1-1/4" H White Plastic Stick On Adhesive Vent
    Airlette®4" D x 1-1/4" H White Plastic Stick On Adhesive Vent (BSV-1)
    0
    # mpn4983934051
    4" D x 1-1/4" H White Plastic Stick On Adhesive Vent by Airlette®. Eliminates condensation, Heat Build-Up and Mildew from Trapped Moisture. The BSV-1 Self "Stick On" Adhesive Vent provides the same protection against heat buildup,...
    Simple "Stick-On" InstallationNo special tools required
    $7.38
  • Airlette® - 8" L x 4-3/4" W White Plastic Diamond Self Attaching Louver Vent
    Airlette®8" L x 4-3/4" W White Plastic Diamond Self Attaching Louver Vent (BSP-1)
    0
    # mpn4983934058
    8" L x 4-3/4" W White Plastic Diamond Self Attaching Louver Vent by Airlette®. Eliminates condensation, Heat Build-Up and Mildew from Trapped Moisture. This product is made of high-quality materials to serve you for years to come....
    Simply "Push" Them In!Automatically cuts its own ventilation " Hole" during installation!
    $6.69
  • Airlette® - Deluxe 4" D x 1-1/4" H White Plastic Snap-In Cowl Vent
    Airlette®Deluxe 4" D x 1-1/4" H White Plastic Snap-In Cowl Vent (BSA-2)
    0
    # mpn4983934059
    Deluxe 4" D x 1-1/4" H White Plastic Snap-In Cowl Vent by Airlette®. The BSA-2 Deluxe Snap-In Vent creates airflow that helps prevent heat buildup, dampness, mildew, and odors. Its installation requires no sewing, hardware, adhesives,...
    Simple Installation Feature: Just "Press" it onSpecial " High-Tack" Pressure Sensitive Adhesive Liner
    $12.65
  • Attwood® - 16" L x 2-1/4" W Black Plastic Louver
    Attwood®16" L x 2-1/4" W Black Plastic Louver (1495A1)
    0
    # mpn4749905125
    16" L x 2-1/4" W Black Plastic Louver (1495A1) by Attwood®. Attwood hull-mounted vents are designed to install by fastening as a complete unit from either inside or outside the hull. Ventilation hose (not included) twists into the...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $18.72
  • Attwood® - 300 Series 2-1/4" L x 2-3/16" W x 9/16" H Stainless Steel Clam Shell Vent
    Attwood®300 Series 2-1/4" L x 2-3/16" W x 9/16" H Stainless Steel Clam Shell Vent (66400-3)
    0
    # mpn4684031459
    300 Series 2-1/4" L x 2-3/16" W x 9/16" H Stainless Steel Clam Shell Vent by Attwood®. Provides a seal and splash protection for vent holes, wire and hose openings. Sizes to fit most common applications. Durable 300 series Marine Grade...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $6.74
  • Beckson® - 5-1/2" L x 6-1/4" W x 2-1/2" H White Plastic Hard Clam Shell Vent with VT-3
    Beckson®5-1/2" L x 6-1/4" W x 2-1/2" H White Plastic Hard Clam Shell Vent with VT-3 (C-7)
    0
    # mpn4902357500
    5-1/2" L x 6-1/4" W x 2-1/2" H White Plastic Hard Clam Shell Vent with VT-3 by Beckson®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $76.72
  • Beckson® - Vent-O-Mate™ 6-1/4" L x 7" W x 3" H White Plastic Cowl Vent
    Beckson®Vent-O-Mate™ 6-1/4" L x 7" W x 3" H White Plastic Cowl Vent (C-1)
    0
    # mpn4902357444
    Vent-O-Mate™ 6-1/4" L x 7" W x 3" H White Plastic Cowl Vent by Beckson®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...
    Built for maximum strength and enduranceExpertly crafted from the highest grade materials
    $36.41
  • Beckson® - Vent-O-Mate™ White Exhaust Vent with Plastic Cover
    Beckson®Vent-O-Mate™ White Exhaust Vent with Plastic Cover (C-6)
    0
    # mpn4902357498
    Vent-O-Mate™ White Exhaust Vent with Plastic Cover by Beckson®. Vacuum-formed white ABS air scoops with white KORAD® cap to prevent cracking or discoloring. Powered by just a slight breeze, the Vent-O-Mate® ventilator automatically...
    Draft freeWater tight
    $66.58
  • Beckson® - Vent-O-Mate™ White Exhaust Vent with Stainless Steel Cover
    Beckson®Vent-O-Mate™ White Exhaust Vent with Stainless Steel Cover (C-6SS)
    0
    # mpn4902357485
    Vent-O-Mate™ White Exhaust Vent with Stainless Steel Cover by Beckson®. Vacuum-formed white ABS air scoops with white KORAD® cap to prevent cracking or discoloring. Powered by just a slight breeze, the Vent-O-Mate® ventilator...
    Draft freeWater tight
    $133.35
  • Davis Instruments® - Windscoop Ventilating Sail
    Davis Instruments®Windscoop Ventilating Sail (291)
    0
    # mpn4978952928
    Windscoop Ventilating Sail by Davis Instruments®. The Windscoop Ventilating Sail puts an end to hot, stuffy cabins and sleepless nights. The Windscoop is aerodynamically designed to force the slightest breeze down into your cabin to...
    Added material and strengthening in stress areasTwo battens are sewn in place
    $49.02
  • Marinco® - 3" D Stainless Steel Day/Night Solar Vent
    Marinco®3" D Stainless Steel Day/Night Solar Vent (N20803S)
    0
    # mpn4555900276
    3" D Stainless Steel Day/Night Solar Vent (N20803S) by Marinco®. New design threads into included deck plate, and is removable from outside without tools. On/off fan switch, LED lights and intake/exhaust switch accessible from inside...
    Circulates fresh air in boat cabin eliminating mold, mildew and musty airMoves 1,000 cubic feet of air/hour or 24,000 cubic feet of air/day (4" model)
    $186.76




Good ventilation aboard provides a number of benefits to both the crew and passengers. It provides a source of fresh air in any weather conditions, helps to prevent bad odors and mildew, and can even save somebody's life by removing carbon monoxide in the case of an emergency. If a non-open vessel is outfitted with a gasoline inboard motor, the ventilation system having a blower is a legal requirement. Commonly, the vent layout includes special channels (ducts) that have openings known as air inlets and outlets. Typically, these openings have different kinds of plastic or metal vents available in various shapes and designs.

There are louver, cowl, mushroom, and other types of vents that can be installed on the deck, walls, or other constructions. The square of vent holes and their location have to meet specific requirements. For instance, air outlets should be installed above any possible bilge water level. In our online store, you will find a large assortment of boat vents offered in different kinds and sizes. They are made from high-quality plastic, stainless steel, brass, or other materials and feature appealing finishes, so you will certainly find the products that suit your project best.

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