Jabsco Service Kit for Manual Toilets (-3000 Series)This is the Jabsco 29045 3000 service kit for Jabsco manual toilets. The kit includes seals and gaskets and is suitable for Jabsco 29090 3000 and 29120 3000 series manual twist 'n' lock toilets not to be confused with the old model which did not feature the twist n lock mechanism. The contents of this service kit are: Top Valve Seat Top Valve Gasket 29042 0000 O Ring (Flush Lever) Buffer O Ring (Piston) Joker Valve 29092 1000 Valve Spring