●【Basic】Door Size: 18" x 18", Color: White, for FOGATTI 55,000 BTU RV water heater(Not available for 42,000 BTU RV water heaters), comes with installation instructions. ●【Durable】The door is made of galvanized steel, durable and sturdy.Professionally designed, waterproof and prevents mosquitoes from entering your water heater. ●【Anti-bump】The doors come with sturdy hinges to tame the bumps of the journey. ●【Applicability】If you are replacing your Suburban 10/12 gallon or Atwood 10 gallon water heater with a FOGATTI RV water heater. Please install with this product. ●【Easy installation】The flush mount door is pulled tight against the sidewall, giving it a neater appearance and reducing the possibility of leaks.