Duckbill check valve with 25mm nylon sewage pipes

AUTO-SAIL-SPORT

Non-return valve with two 25 mm / 1' hose connectors. The 'duckbill' valve blocks the return of waste (gray / dirty sewage water). Installation between the toilet and the faeces tank.

Vetus companyThe installation kit consists of:

a non-return valve with mounting brackets

two 25mm connectors

for a 19mm - 1 inch hose (D - drawing below))

very durable, strong NYLON

rubber seals and valve diaphragm

You are bidding on one set as in the photo below. On another auction, a valve with 25mm connectors.