SPECIFICATION: Color: White Material: Plastic External Dia: 142mm(5.6") Opening Dia: 92mm(3.62") Cut Out Dia: 101mm(4") Features: Designed with a non-skid surface allowing horizontal as well as vertical mounting. These inspection hatches have improved features that are impossible to avoid. These inspection hatches are constructed from Polypropylene plastic for extra resistance to the sun, water, salt. With CE Certified.

5.Pre-drilled countersunk holes (screws not included). 4.Separate cover plate and chassis, easy to install. 3.Reinforced design with a non-slip surface. 2.Weather-tight and O-ring sealed deck plates are ideal for interior and exterior applications. 1.Made of ABS material, anti-aging, anti-corrosive, ultraviolet resistant.

Date First Available: March 18, 2019. Best Sellers Rank: #61,284 in Sports & Outdoors. Customer Reviews: 4.6 out of 5 stars 114 ratings 4.6 out of 5 stars. : B07PQ7C1R7. Size: ?4 inch. Manufacturer: ?Hoffen Indutries CO,.LTD. Color: ?white. Brand Name: ?Hoffen Bay-sun. Package Weight: ?0.12 Kilograms. Item Package Dimensions L x W x H: ?5.55 x 5.51 x 1.1 inches.