Package includes: you will receive 385311462 and 385316140 RV toilet rubber seal,totally 2 piece, convenient for you to use, change and replace Application: can be applied as replacement for 385311462, and compatible with Dometic, Sealand, VacuFlush and travel trailer RV Camper toilet Fit models: 506+, 510+, 511 H, 547+, 548+, 706, 709, 748, 749, 806, 808, 847, 848, 1147, 1148, 2010, 2011, 5006, 5047, 5048, 5049, EcoVac 146-149, VacuFlush 168, 606, 647, 648, 1006, 1008, 1047, 1048, 1049, 1106, 5146, 5147, 5148, 5149 Durable material: the RV toilet seal kit made of rubber, which is a kind of durable material, won't be broken easily, you can use it for a long time Anti-leaking design: the toilet rubber seals can effectively avoid leakage, you needn't worry about leaking problem, easy to use, save your time and energy, bring convenience for your life