This kit contains all the seals required to repair any all plastic Thetford termination valve.

Includes:

• Large flat perimeter gasket that is sandwiched between two plastic layers of valve 
• Gasket that seals against the blade inside the valve
  
• O-ring for valves with O-ring connections on the outlet side, like the 08706
  
• Gasket for "flat top" valves that bolt directly to a Thetford valve mounting flange

This is Thetford part 09872. If you have a stainless steel top Thetford valve, you will need Repair Kit 03827 which is now discontinued.