Amazon.com: 385311462 and 385316140 RV Toilet Flush Ball Seal Rubber Bowl Seal (Pack of 2) Rubber Seal for Dometic Sealand Mansfield VacuFlush for 510/506+, 510+/1006, 1008/EcoVac, 511H, 548+, 146-149, 2010 : Automotive
VacuFlush Toilets (Pedal Flush) - YouTube
VacuFlush Seal repair for RV or Marine Toilet | For Beginners - YouTube