This kit contains all the seals required to repair any all plastic Thetford 01447 Slide-EZ termination valve.
This is Thetford part 09872. If you have a stainless steel top plate Thetford valve, this kit will not work. You would need Repair Kit 03827 which is discontinued.
This can also be used on Electra Magic Slide EZ valves of Electra Magic Model 80 recirculating toilets.