- New
42049 is a replacement water valve module by Thetford, designed for compatible Aqua-Magic Style II and Residence permanent RV toilets. The kit includes a water valve cartridge, drive arm seal, water inlet seal, water inlet spring, spring retainer and closet flange seal. It is intended to replace worn or faulty valve components and help restore proper water flow during flushing. Confirm your toilet model and existing part number before ordering.