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 - Use a hole saw to create a 3-2/3 inch hole in the wall. 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. Secure the hatch in place by screwing in 3 bolts. HIGH-QUALITY PP MATERIAL - Engineered to endure the elements, the electrical hatch is constructed from premium PP material. This ensures durability, resistance to fading, and reliable performance while effectively covering electrical cords. VERSATILE APPLICATION - Ideal for RVs, campers, and trailers, this power cable hatch safeguards connections with generators, plugs, sockets, and more, ensuring a dependable and secure power supply. Constructed from PP material, the hatch is water, acid, and UV-resistant. Color: Black Material: Plastic Package Contents: 2 * RV Hatch Covers 6 * Screws Only the above package content is included; other products are not included. 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.