Heatrae Sadia PACK U1 Combined Pressure Reducing Valve & Strainer 

The Heatrae Sadia pack U1 combined pressure reducing valve and strainer is a useful safety device for unvented water heaters.

• Pressure reducing valve limits water pressure to 3.5 bar
• Strainer filters coarse impurities from the water supply
• To be fitted on the cold water side before the expansion vessel
• Pack U1 must be used with Pack U2 for Multipoint and Pack U5 for Hotflo.