![Sea-Dog Stainless Steel Butterfly Vent - Center Knob - 4" [331440-1] 1](https://carpartsamerica.shop/wp-content/uploads/2026/05/sea-dog-stainless-steel-butterfly-vent-center-knob-4-331440-1-1.webp)
Description
Stainless Steel Butterfly Vent – Center Knob – 4″
Butterfly Vents promote air flow preventing mold, mildew, and associated odors. Features a center knob that allows for easy adjustment of the opening. Corrosion resistant 304 stainless steel construction. Installs with four #6 RH fasteners (not included).
Explore more from our collection.
![Sea-Dog Stainless Steel Round Louvered Vent - 5" [331425-1] 1](https://carpartsamerica.shop/wp-content/uploads/2026/05/sea-dog-stainless-steel-round-louvered-vent-5-331425-1-1.webp)
![Sea-Dog Stainless Steel Louvered Vent - 9-1/8" X 4-5/8" [331400-1] 1](https://carpartsamerica.shop/wp-content/uploads/2026/05/sea-dog-stainless-steel-louvered-vent-9-1-8-x-4-5-8-331400-1-1.webp)
![Sea-Dog Stainless Steel Louvered Vent - 5" X 2-5/8" [331380-1] 1](https://carpartsamerica.shop/wp-content/uploads/2026/05/sea-dog-stainless-steel-louvered-vent-5-x-2-5-8-331380-1-1.webp)
Reviews
There are no reviews yet.