Sea-Dog 331335-1 Stainless Steel Clam Shell Vent - Mini ADDDOCBO3 They are the best-selling navigation

They are the best-selling navigation tool in our whole product line for good reason:

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Sea-Dog 331335-1 Stainless Steel Clam Shell Vent - Mini ADDDOCBO3 They are the best-selling navigationStainless Steel Clam Shell Vent Mini Mini Clam Shell Ventilators provide splash protection for vent holes, wires, cable runs, or blower exhaust hose openings. Corrosion resistant 304 stamped stainless steel construction. Can be used for cabin ventilation with the addition of a dorade box. Clam Shell Vents are ideal for applications where a taller vent would foul lines or restrict crew movement. Easy to install with pre drilled holes for five #6 RH