Exterior Marine Vents

32 Items
 
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Seasense Mini Clam Shell Vent
    Stainless steel clam shell vent.Sold in pairs.Used for rigging.
    List price: $2.79
    Starting at $2.24
    (1)
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    Perko Cowl Ventilator
      Features:Perko Chromalex, die-cast chrome Plated Zinc Alloy Cowl with Black Polymer Base.Connects to 3" I.D. ventilation hose (Hose Clamps Not …
      List price: $30.29
      Only $21.15
      In stock
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      Side Vent Adjuster Kit
        Features:Injection molded nylon.Included a 302 stainless steel pin. Skin Packed.
        List price: $8.95
        Your price:
        $6.87
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        Seadog Midget Clam Shell Ventilator
          Features: Made of 18-8 stainless steel. This streamlined midget ventilator has many uses, including shielding gas tank vents.Available in 2 sizes: 1- …
          List price: $2.10
          Starting at $1.41
          (2)
          In stock
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          Perko Clam Shell Ventilator
            Features:Chrome plated brass. Dimensions: Base 4"x3-3/4", height opening 1-5/8", width opening 2-1/2".For number 6 fasteners.Comes Skin Packed.
            List price: $42.49
            Only $29.08
            In stock
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            Seadog Clam Shell Vent
              Stamped 304 stainless steel. Available in three sizes.
              List price: $21.45
              Starting at $16.45
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              Seadog Midget Vent - Heavy Duty
                Heavy duty stamped 304 stainless steel. 3-3/4"L x 3-1/2"W x 1/2"H.
                List price: $6.70
                Your price:
                $5.14
                In stock
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                Cable Outlet 5/16" - Seadog Line
                  Machined brass, chrome plated. 1/4" cable opening fits RG58 coax cable. 5/16" cable opening fits RG8X coax cable. Flange width 1-1/4", height above …
                  List price: $5.50
                  Only $4.32
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                    Chrome plated brass.
                    List price: $5.50
                    Starting at $4.32
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                      Stainless steel. Fastener is #6 RH.
                      List price: $21.45
                      Starting at $16.45
                      (1)
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                      Attwood Plastic Louvered Vent
                        Manufactured with edge-free, paintable and corrosion resistant plastic, this louvered vent can just blend in and do its job. In a variety of …
                        List price: $15.69
                        Starting at:
                        $13.34
                        (5)
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                        Attwood Flush Louvered Vent
                          Attwood louvers deflect the rain and help to protect your collector box. The handy drain slots help prevent water the accumulation of water. With …
                          List price: $12.79
                          Starting at:
                          $10.87
                          (4)
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                          T-H Marine Louvered Plastic Vent Cover
                            Vent cover designed with louvers to eliminate see-through look and defect rain.5 5/8" overall diameter fits into 4" hole.Designed with a flange …
                            List price: $5.79
                            Starting at:
                            $4.92
                            (2)
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                            Seachoice Clam Shell Ventilators
                              Chrome Plated Brass
                              List price: $10.25
                              Starting at:
                              $9.01
                              In stock
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                              Molded Clam Shell, Large, White - Seachoice
                                UV and weather resistant and great for routing cables, wire, etc.
                                List price: $7.25
                                Starting at:
                                $6.37
                                In stock
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                                Attwood S.S. Louvered Vent
                                  All-welded 304 stainless steel construction with polished finish. Install with #8 screws. Requires collector box 1487A for 3" system, or 1487B for 4" …
                                  List price: $43.99
                                  Your price:
                                  $37.39
                                  (2)
                                  In stock
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                                  Dr. Shrink Self-Adhesive Vent
                                    Self-adhesive "weather-tight" shrink wrap vent, 4" x 5".
                                    List price: $2.99
                                    Your price:
                                    $2.54
                                    In stock
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                                    CLAM SHELL VENT-4 X 3 3/4 - Seachoice
                                      Great for routing cables.
                                      List price: $24.95
                                      Your price:
                                      $19.65
                                      In stock
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                                      Perko Louvered Ventilators
                                        Features:Chrome plated brass.Screw size: #4 R.H.
                                        List price: $26.09
                                        Starting at:
                                        $18.50
                                        In stock
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                                        Beckson Ventilators
                                          Features:Tough white CYCOLAC plastic air scoops with white acrylic cap to prevent cracking or discoloring. Packed in bags with stainless steel screws. …
                                          List price: $23.15
                                          Starting at:
                                          $18.48
                                          In stock
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                                          AFI Hose and Cowl Vents
                                            Red interiors. White cycolac snap-in deck plates provided. Flexible and low profile.
                                            List price: $59.79
                                            Starting at:
                                            $48.52
                                            In stock
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                                            T-H Marine Clam Shell Vents
                                              Features: These super-strong molded clam shells are an economical and attractive alternative for metal clam shells.Molded super strong.UV and weather …
                                              List price: $6.89
                                              Starting at:
                                              $5.48
                                              In stock
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                                              Detmar Low Profile Louvered Vent
                                                Features:Contemporary styling combined with tough ABS construction.Hole cut out: 15-1/2" x 2-1/4".Size: 17" Long x 3-1/8" High x 1"D with 15/16" …
                                                List price: $19.89
                                                Your price:
                                                $9.41
                                                (4)
                                                In stock
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                                                Perko Flanged Ventilator
                                                  Features:3" Duct threads into neck.No clamps necessary. Chrome plated zinc alloy with black Perko-Kote base. Mouth opening: 7-1/3" Length overall: 5- …
                                                  List price: $42.49
                                                  Your price:
                                                  $26.97
                                                  In stock
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                                                    Use with plastic louvered vent, with two 3" I.D. wire supported ventilation hoses. Box fastens to vent with screws or pop rivets, vent then …
                                                    List price: $12.69
                                                    Your price:
                                                    $10.05
                                                    In stock
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                                                      White ABS vent cap with vent hose adapter that mounts to deck. Vents snaps into place on adapter.
                                                      List price: $42.00
                                                      Starting at:
                                                      $34.20
                                                      In stock
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                                                      Attwood Venturi Vent
                                                        A clean, contemporary, louver designed vent. Corrosion-resistant ABS plastic. Install with #8 screws. For use with collector boxes 13411 for …
                                                        List price: $12.59
                                                        Starting at:
                                                        $10.70
                                                        (4)
                                                        In stock
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                                                          Passive cowl vents allow proper ventilation to help prevent mold and mildew and keep your boat fresh with no use of power. White with a red interior&# …
                                                          List price: $73.79
                                                          Starting at:
                                                          $59.83
                                                          In stock
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                                                          Attwood Cowl Ventilator
                                                            List price: $26.99
                                                            Your price:
                                                            $22.94
                                                            (6)
                                                            Out of stock
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                                                            Self-Adhesive Vent
                                                              Self-adhesive "weather-tight" shrink wrap vent, 4" x 5".
                                                              List price: $3.19
                                                              Your price:
                                                              $2.71
                                                              Out of stock
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                                                              COWL VENT W/HOSE ADAPTER F/3 - Beckson
                                                                Designed for attaching ventilation hose to deck for use with Beckson "C" series vents.
                                                                List price: $10.40
                                                                Your price:
                                                                $8.30
                                                                In stock
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                                                                  PVC. Ideal for areas where vent will be under foot or foul lines.
                                                                  List price: $20.50
                                                                  Your price:
                                                                  $16.36
                                                                  In stock
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                                                                  32 Items
                                                                   
                                                                  Sensible Savings Up to 15% Off!
                                                                  Seasense
                                                                   
                                                                  Seadog Line
                                                                   
                                                                  Attwood
                                                                   
                                                                  Seachoice
                                                                  Perko
                                                                   
                                                                  Beckson
                                                                   
                                                                  T-H Marine Supply
                                                                   
                                                                  AFI
                                                                  Dr. Shrink
                                                                   
                                                                  Nicro
                                                                   
                                                                  DetMar
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                                                                  Venturi Vent, White, Bulk - Attwood
                                                                  Only $10.70
                                                                  Save:$1.89 (15% Off)
                                                                  Venturi Vent, White, Bulk - Attwood
                                                                   
                                                                  Louvered Vent, Plastic, Off-White, Bulk - Att …
                                                                  Only $13.34
                                                                  Save:$2.35 (14% Off)
                                                                  Louvered Vent, Plastic, Off-White, Bulk - Att …
                                                                   
                                                                  Vent Cover, Louvered Style, Fish White - T-H  …
                                                                  Only $4.92
                                                                  Save:$0.87 (15% Off)
                                                                  Vent Cover, Louvered Style, Fish White - T-H  …
                                                                   
                                                                  Midget Clam Shell Ventilator 2-1/4" X 2- …
                                                                  Only $1.61
                                                                  Save:$0.79 (23% Off)
                                                                  Midget Clam Shell Ventilator 2-1/4" X 2- …
                                                                  Best Seller! Extra Sale-a-palooza Savings!
                                                                  Low Profile Boat Louvered Vent, White - Detma …
                                                                  Only $9.41
                                                                  Save:$10.48 (52% Off)
                                                                  Low Profile Boat Louvered Vent, White - Detma …
                                                                   
                                                                  Midget Clam Shell Ventilator 1-5/8" X 1- …
                                                                  Only $1.41
                                                                  Save:$0.69 (23% Off)
                                                                  Midget Clam Shell Ventilator 1-5/8" X 1- …
                                                                  Best Seller! Extra Sale-a-palooza Savings!
                                                                   
                                                                  Boat Vent, Louvered, Stainless Steel - Attwoo …
                                                                  Only $37.39
                                                                  Save:$6.60 (15% Off)
                                                                  Boat Vent, Louvered, Stainless Steel - Attwoo …
                                                                   
                                                                  Louvered Venturi, Chrome - Attwood
                                                                  Only $28.47
                                                                  Save:$6.52 (18% Off)
                                                                  Louvered Venturi, Chrome - Attwood
                                                                  Louvered Boat Venturi, Chrome, Bulk Packaging …
                                                                  Only $26.28
                                                                  Save:$6.01 (18% Off)
                                                                  Louvered Boat Venturi, Chrome, Bulk Packaging …
                                                                   
                                                                  Louvered Vent, Plastic, Chrome Plated - Attwo …
                                                                  Only $32.28
                                                                  Save:$5.71 (15% Off)
                                                                  Louvered Vent, Plastic, Chrome Plated - Attwo …
                                                                   
                                                                  Flush Louvered Vent, Black - Attwood
                                                                  Only $10.87
                                                                  Save:$1.92 (15% Off)
                                                                  Flush Louvered Vent, Black - Attwood
                                                                   
                                                                  Vent Cover, Louvered Style, Black - T-H Marin …
                                                                  Only $4.92
                                                                  Save:$0.87 (15% Off)
                                                                  Vent Cover, Louvered Style, Black - T-H Marin …
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                                                                  Cable Outlet 5/16" - Seadog Line
                                                                  Only $4.32
                                                                  Save:$1.18 (18% Off)
                                                                  Cable Outlet 5/16" - Seadog Line
                                                                  Sale-a-palooza BIG Savings!
                                                                   
                                                                  Vent, Clamshell, 7-1/2"L x 6-3/4"W  …
                                                                  Only $29.92
                                                                  Save:$10.33 (18% Off)
                                                                  Vent, Clamshell, 7-1/2"L x 6-3/4"W  …
                                                                  Sale-a-palooza BIG Savings!
                                                                   
                                                                  Vent, Clamshell, 7"L x 5-3/4"W x 2- …
                                                                  Only $26.95
                                                                  Save:$9.30 (18% Off)
                                                                  Vent, Clamshell, 7"L x 5-3/4"W x 2- …
                                                                  Sale-a-palooza BIG Savings!
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                                                                  Sale-a-palooza BIG Savings!
                                                                  Only $4.32
                                                                  Savings: $1.18
                                                                  Compare at: $5.50
                                                                  Cable Outlet 5/16" - Seadog Line
                                                                  Sale-a-palooza BIG Savings!
                                                                  Only $29.92
                                                                  Savings: $10.33
                                                                  Compare at: $40.25
                                                                  Vent, Clamshell, 7-1/2"L x 6-3/4"W x 2-7/8"H - Seadog Line
                                                                  Sale-a-palooza BIG Savings!
                                                                  Only $26.95
                                                                  Savings: $9.30
                                                                  Compare at: $36.25
                                                                  Vent, Clamshell, 7"L x 5-3/4"W x 2-1/4"H - Seadog Line
                                                                  Sale-a-palooza ends July 31st - Shop now for the best selection and savings!