Product Description
Tecma Lower Discharge Check Valve. They have redesigned their original check valve. There are components needed that are not included. It is not clear from Thetford what components are needed. From our understanding they made it very difficult... (you should just get the new style check valve by clicking here)
Through the floor discharge: this will insert into the discharge pipe on the toilet, and you will need an 1.5" PVC (into the check valve) x 1.5" hose adapter (to attach it to the hose going to the tank).
90° Discharge out the back: You will need a 90° 1.5" hose adapter to hose adapter, to go into the toilet discharge pipe, and a chuck of 1.5" hose on the other end to attach the check valve to it... Then an 1.5" PVC pipe (into the outboard side of the check valve) x 1.5" hose adapter (to attach it to the hose going to the tank).

Warning: This item may contain ingredients that are listed under P65warnings.ca.gov