Feature:1. Reliable Construction: The 3 slots louvered vent is made of heavy duty stainless steel with polished finish treatment, highly rustproof enough to withstand the harsh marine environment.2. Great Function: The boat louver is designed to allow air to pass and keep unwanted elements out at the same time, is a great replacement for old vents on your boat.3. Excellent Performance: ocean louvered slotted ventilator is used to allow a flush surface at the vent area reducing damage to the vent as well as mooring lines, fishing lines, etc.4. Universal Accessory: The heavy duty 3 slots boat vent shutter is suitable for various kinds of boats, and the overall style is modern and stylish to replace a plastic one.5. Easy to Install: High accuracy for fast and convenient installation in a short time and hardly require any mechanical expertise, and no modification, cutting or drilling required.Specification:Item Type: Boat LouverMaterial: 304 Stainless SteelSlots: 3Type: BlindsProduct Size: Approx. 8-1/4in x 4-3/8in (210mm x 110mm, L x W)Cutout Size: Approx. 7-1/8in x 3-1/2in (182mm x 90mm, L x W).Package List:2 xBoat Louver