(REPLACES: AT91522). It's not uncommon to lose a water heater door going down the road, or just need a replacement due to rust or other damage. Door Size: 14-5/8" X 18". This part is associated with Pilot Models: GC6A, GC6A-3, GC6A-6, GC6A-7, G6A, G6A-2, G6A-3, G6A-6, G6A-6P, G6A-7, G6A-7P, GH6-3 GH6-6, GH6-7, GC6AA-7, GC6AA-7P, GC6AA-8, GC6AA-8P, GC610-3, GC610-3E, GH610-3, G4SM. /// Also associated with Electronic Models: GCH6-4E, GCHT-6E, GCH6-7E, GC6A-7E, GH6-6E, GH6-7E, GH6-8E, G6A-6E, G6A-7E, G6A-8E, GCH6A-7E, GCH6A-8E, GCH6A-9E, GC6AA-7E, GC6AA-8E, GC6AA-9E, G6A-2E, GH6-3E, G6A-3E, GH6-3E, GH6-4E, G6A-4E, GCH6A-10E, GC6AA-10E, GC10A-4E, GCH10A-4E. Please Note: This door does not come with the hardware. The part number for the hardware is AT91858. | Atwood Mobile Door, Access, Exterior, Replacement, Six (6) Gal, - Arctic White, Water Heater