UNIVERSAL COMPATIBILITY - The round electric cable hatch cover is suitable for 30 amp and 50 amp power cords and plugs, replacing any round hatch. SIMPLE INSTALLATION PROCESS - Follow these easy steps: ① Use a hole saw to create a 3-2/3 inch hole in the wall. ② Insert the cord from the backside of the hatch, applying water-resistant materials such as butyl tape, putty tape, caulk, or silicone sealant at the flange back before installation. ③ Secure the hatch in place by screwing in 3 bolts. HIGH-QUALITY PP MATERIAL - Engineered to endure the elements, our electrical hatches are constructed from premium PP material. This ensures durability, resistance to fading, and corrosion-free performance while effectively covering electrical cords. VERSATILE APPLICATION - Ideal for RVs, campers, and trailers, this power cable hatch protects connections with generators, plugs, sockets, and more, ensuring a reliable and secure power supply. Constructed from durable PP material, these hatches are water, acid, and UV-resistant. Color: White Material: Plastic Package Contents: 2 x RV Hatch Covers 6 x Screws Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement may vary by +/- 1-3 cm.