Tomson NRI Valves provide protection from contamination of mains supply and protection from isolation of water.
AVG 15mm 1/2 NRI-PRV-15C Non Return Isolation Pressure Reducing Combo – All Pumbing Online
TOMSON NON RETURN ISOLATION VALVE 1400kPa Female & Female- 15mm Or 20mm $92.95 - PicClick AU
Mildred Valve 2.0 – BuildTuff Australia
Tomson Leak Protection Valve LPV from Reece
Everhot 250L 3.6kW Single Element Electric Hot Water System from Reece
AVG 15mm 1/2 NRI-PRV-15C Non Return Isolation Pressure Reducing Combo – All Pumbing Online
Non Return Isolation Valve Female & Female 15mm – hotwaterboss
Tech Direct Issue 17 by ERIKS UK & Ireland - Issuu
Non Return Isolating Valve Compression NRIBV C x C 15mm 1/2
Non Return Isolating Valve Compression NRIBV C x C 15mm 1/2