Product no.: 119475
The non-return valve (check valve) is required to avoid the recontamination by the wastewater hose Installation:
The non-return valve is integrated into the wastewater hose.
For this, the hose is cut through and inserted into both sides of the valve.
Secure with the blue brackets.
Pay attention to the direction of flow.
Fits: All osmosis systems with 1/4 water hose.