Sea Dog Stainless Steel Round Louvered Vent ( 4" or 5" Sizes )
Sea Dog Stainless Steel Round Louvered Vent ( 4" or 5" Sizes )Sea Dog Stainless Steel Round Louvered Vent ( 4" or 5" Sizes )Sea Dog Stainless Steel Round Louvered Vent ( 4" or 5" Sizes )
Sea Dog Stainless Steel Round Louvered Vent ( 4" or 5" Sizes )
Item #SD-Rnd-Louv-Vent
Item Rating:
Regular Price:$10.99
Sale Price:$6.94
You Save: 37%
Size/ Model #
Quantity Pricing Available!
1 - 9$6.94 ea.10+$5.96 ea.
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Stainless Steel Round Louvered Vent by Sea Dog > 4" or 5" Sizes > 304 S.S. > Model No. 331424 or 331425

- A part of the Sea Dog line of heavy duty stainless steel marine grade hardware, so these stainless steel round louvered vents are built to last.

Product Features:

Made from Stamped 304 Stainless Steel, for lasting corrosion resistance and durability.

Instead of using toxic chemicals to get rid of mold and mildew, why not prevent it from showing up in the first place?

Creating a steady flow of fresh air is one of the best things you can do on-board to keep your boat smelling fresh and mold-free.

Specifications & Pricing:

Vent Size (A) Vent Opening DIA (B) Screw Ring DIA (C) Price Per Vent
4" 3 1/4" 3 5/8" $6.94 or 10+ for $5.96
5" 4 1/8" 4 1/2" $9.88 or 10+ for $8.90
Please choose the vent you need from the drop down menu above the product description.

Vent Option: 4" Size - Model # SD-331424 - Edge to Edge Diameter (A): 4" - Vent Opening Diameter (B): 3 1/4" - Diameter From Mounting Hole To Mounting Hole (C): 3 5/8" - Vent Area: .88 square inches - Material: 304 S.S. - Recommended Mounting Hardware: # 6 Fasteners - Price: $6.94 each or 10+ for $5.96 each

Vent Option: 5" Size - Model # SD-331425 - Edge to Edge Diameter (A): 5" - Vent Opening Diameter (B): 4 1/8" - Diameter From Mounting Hole To Mounting Hole (C): 4 1/2" - Vent Area: 2.02 square inches - Material: 304 S.S. - Recommended Mounting Hardware: # 6 Fasteners - Price: $9.88 each or 10+ for $8.90 each

Combine this purchase with other items in our store for discounted shipping.

Product Reviews for Sea Dog Stainless Steel Round Louvered Vent ( 4" or 5" Sizes )

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<strong>Sea Dog Stainless Steel Oval Locker Vent</strong> (6-3/4" Size)
<strong>Sea Dog Stainless Steel Rectangular Louvered Vent</strong> ( 5" to 9 1/8" Sizes )
<strong>Sea Dog Stainless Steel Clam Shell Vent</strong> ( 5 3/4" to 7 1/2" Sizes )
<strong>Sea Dog Stainless Steel Oval Locker Vent</strong> (6-3/4" Size)
Regular Price: $12.75
Sale Price: $10.22
Stainless Steel Oval Locker Vent by Sea Dog > 6 3/4" x 2 3/8" Size > Model No. 331620 > 304 S.S.

- A part of the Sea Dog line of heavy duty stainless steel marine grade hardware, so these oval locker vents are manufactured to last.

Product Features:

Made from stamped 304 Stainless Steel, for lasting corrosion resistance and longevity.

Instead of using toxic chemicals to get rid of mold and mildew, why not prevent it from showing up in the first place?

Creating a steady flow of fresh air is one of the best things you can do on-board to keep your boat smelling fresh and mold-free.

Mounting hardware sold separately.

Specifications & Pricing:

Vent Area Width Overall (A) Length Overall (B)
2.56 Square Inches 2 3/8" 6 3/4"


Product Type: Sea Dog Stainless Steel Oval Locker Vent - Size: 6 3/4" x 2 3/8" - Model # SD-331620 - Length (B): 6 3/4" Long - Width (A): 2 3/8" Wide - Vent Area: 2.56 Square Inches - Material: 304 S.S. - Recommended Mounting Hardware: #8 Fasteners - Price: $10.22 each or 10+ for $9.20 each

Combine this purchase with other items in our store for discounted shipping.
<strong>Sea Dog Stainless Steel Rectangular Louvered Vent</strong> ( 5" to 9 1/8" Sizes )
Regular Price: $8.29
Sale Price: $6.65
Sea Dog Stainless Steel Rectangle Louvered Vent > Model No. 331380, 331390, 331400, or 331410 > 2 5/8", 4 5/8", 5", 9", or 9 1/8" Sizes > 304 S.S.

- A part of the Sea Dog line of heavy duty stainless steel marine grade hardware, so these stainless steel rectangular louvered vents are built to last.

Product Features:

Made from Stamped 304 Stainless Steel, for lasting corrosion resistance and durability.

Mounting hardware sold separately.

Instead of using toxic chemicals to get rid of mold and mildew, why not prevent it from showing up in the first place?

Creating a steady flow of fresh air is one of the best things you can do on board, to keep your boat smelling fresh and mold-free.

Model #'s SD-331380, SD-331390, and SD-331400 have horizontal vents.

Model # SD-331410 have vertical vents.

Specifications & Pricing:

Width (A) Height (B) Price Per Vent
5" 2 5/8" $6.65 or 10+ for $5.99
5" 4 5/8" $10.79 or 10+ for $10.13
9 1/8" 4 5/8" $17.83 or 10+ for $17.17
5" 9" $18.68 or 10+ for $18.02
Please choose the Vent(s) you need from the drop down menu above the product description.

Vent Option: 5" x 2 5/8" Size - Model # SD-331380 - Dimensions: 2 5/8" (B) x 5" (A) - Vent Area: .81 square inches - Vent Style: Horizontal - Material: 304 S.S. - Recommended Mounting Hardware: # 6 Fasteners - Price: $6.65 each or 10+ for $5.99 each

Vent Option: 5" x 4 5/8" Size - Model # SD-331390 - Dimensions: 4 5/8" (B) x 5" (A) - Vent Area: 1.62 square inches - Vent Style: Horizontal - Material: 304 S.S. - Recommended Mounting Hardware: # 6 Fasteners - Price: $10.79 each or 10+ for $10.13 each

Vent Option: 9 1/8" x 4 5/8" Size - Model # SD-331400 - Dimensions: 4 5/8" (B) x 9 1/8" (A) - Vent Area: 3.24 square inches - Vent Style: Horizontal - Material: 304 S.S. - Recommended Mounting Hardware: # 6 Fasteners - Price: $17.83 each or 10+ for $17.17 each

Vent Option: 5" x 9" Size - Model # SD-331410 - Dimensions: 5" (A) x 9" (B) - Vent Area: 4.05 square inches - Vent Style: Vertical - Material: 304 S.S. - Recommended Mounting Hardware: # 6 Fasteners - Price: $18.68 each or 10+ for $18.02 each

Combine this purchase with other items in our store for discounted shipping.
Size/ Model #: 
<strong>Sea Dog Stainless Steel Clam Shell Vent</strong> ( 5 3/4" to 7 1/2" Sizes )
Regular Price: $32.80
Sale Price: $20.97
Sea Dog Stainless Steel Clam Shell Vent > Model No. 331330, 331340, or 331350 > 5 3/4", 7", or 7 1/2" Sizes > 304 S.S.

- A part of the Sea Dog line of heavy duty stainless steel marine grade hardware, so these stainless steel clam shell vents are build to last.

Product Features:

Made from Stamped 304 Stainless Steel, for lasting corrosion resistance and durability.

Mounting hardware sold separately.

Length (A) Width (B) Height (C) Price Per Vent
5 3/4" 4 13/16" 2 5/16" $20.97
5 7/8" 4 7/16" 3 5/16" $23.05
7" 5 3/4" 2 1/4" $24.09
7 5/16" 5 13/16" 4" $37.11
7 1/2" 6 3/4" 2 7/8" $26.87

See our Specifications & Pricing Tab above, for more details about this items different Sizing Details and the Final Pricing for Each of our options available.

One of the greenest things you can do to treat odors is to keep them from developing in the first place.

Plenty of fresh air and sunshine are Nature's most effective deodorizers.

Unfortunately a boat's interior is often lacking both.

Sealed up tight, with moisture all around, your boat's cabin is a perfect breeding ground for odor causing mold and mildew.

Instead of using toxic cleaners and sprays to attack this nasty stuff, why not prevent it from gaining a foothold in the first place?

Creating a simple path for air to circulate in and out of your boat is one of the most effective ways to keep mold and mildew from developing.

When installed properly these simple clam shell vents will help move plenty of fresh air through your vessel.
Size/ Model #: 




  • Product exactly as described, will definitely buy from again. B. Stowell.
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