20mm F&F Dual Check Valve – DR Brass Backflow Preventer AVG 2NV20-20F Dispensers this part can wear out

this part can wear out as it ages

Butterfly screw: Allows easy feeding as cutting

stainless steel toilet roll holder

Available in Matte Black

20mm F&F Dual Check Valve – DR Brass Backflow Preventer AVG 2NV20-20F Dispensers this part can wear outEnsure the integrity of potable water systems with the Watts 2NV20 20 Dual Check Valve. Designed to prevent cross contamination from non potable sources, this valve is ideal for low hazard installations such as domestic meter connections. Featuring two spring loaded check valves, the 2NV20 20 remains closed under backflow conditions, providing dependable protection against reverse flow incidents. Key Features: Dual Spring Loaded Check Valves: Remain