Dometic 1423001 Advanced Toilet Seal Save 16Oz Millions of people around the world buy and use Dometic products. Genuine Dometic Replacement parts are what keeps our Camper, RVs Boats running for all of us outdoor people. They’re RV users, boat owners, truck drivers, campers, outdoor people. And all part of a growing movement – a longing for freedom and adventure, a desire to explore the world and to stay away for extended periods of time. We call it mobile living.