Five Oceans Boat Hatch, Marine Access Hatch, Round Inspection Deck Plate Hatch with Detachable Cover, UV Resistant ABS Black Plastic, for Pontoon, Fishing Boat, Bass Boat, Yacht, Sailboat

Marine-Grade Material - 4" Boat Hatch Round Inspection screw-in deck plate is made of anti-aging, anti-corrosive, and UV-resistant ABS Black plastic with a smooth finish
Leak-Proof Deck Plate - Designed with a rubber O-ring that creates a watertight seal for safety and allows for interior and exterior applications
Easy Installation - Screw-in style Boat Hatch has a single-start, non-jamming, and no cross-threading. Separate cover plate and chassis for easy installation. 6 #8 Screws Needed (not included)
Measurements - Inside Diameter: 4" (102mm), Outside Diameter: 5-11/16" (144mm), Cutout: 4-7/16" (112mm), Distance Between Mounting Holes: 5" (127mm)
Safety - Boat Access Hatch includes a safety lanyard to secure the lid cover. Please, use silicone sealant on the hull or deck surface when installing the deck plate. FIVE OCEANS, 40 Years Developing High-Quality Marine & Outdoor Products

Leak-Proof Deck Plate - Designed with a rubber O-ring that creates a watertight seal for safety and allows for interior and exterior applications

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