This round inspection 5 inches screw in deck plate is made of anti corrosive and ABS material with smooth finish.
This deck plate is leak-proof. Screw in style is non jamming. Separate cover plate and chassis are for easy installation. Screws are not in the package.
Designed with a O ring that creates a tight seal for safety and allows it to be used for interior and exterior applications.
Specification: Dimension: 17.1x1.7cm / 6.73"x0.67"(L*W), Installation Hole Size: 0.5cm / 0.20", Inner Hole Size: 12.7cm / 5.00", Cover Bottom Size: 13.1cm / 5.16"
Package Includes: 1 x Inspection Deck Plate Hatch