• MARINE-GRADE MATERIAL: 4" Boat Hatch Round Inspection screw-in deck plate with Clear Lid is made of anti-aging, anti-corrosive, and UV-resistant ABS white plastic with a smooth finish
• LEAK-PROOF DECK PLATE: It is designed with a rubber O-ring that creates a watertight seal for safety and allows it to be used for interior and exterior applications
• EASY INSTALLATION: Screw-in style 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: 5-5/8" (143mm), Cutout: 4-7/16" (113mm), Distance Between Mounting Holes: 5-1/4" (133mm)
• SAFETY: Access Hatch includes a safety lanyard to secure the clear 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