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Reduced Pressure Zone Assemblies, Stainless Steel

Series 994 Reduced Pressure Zone Assemblies prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It consists of a stainless steel body construction with stainless steel internal parts. The bottom-mounted relief valve is located between the two check valves, making it suitable for installations against an outside wall. Series 994 has a compact design with a short lay length, ideal for retrofit installations. The 994 is designed for health hazard applications. Check with local water authorities for installation requirements. Maximum Working Pressure: 175psi (12.06 bar).


  • Stainless steel body provides strength, resists corrosion, and weighs less than competitive designs
  • Torsion spring check valves provide maximum flow at low pressure drop
  • Balanced rolling diaphragm on relief valve lowers maintenance costs
  • Bottom-mounted relief valve reduces clearance requirements when installed against an outside wall

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Select options below to identify the UPC, Order Code, and Repair Kit for a specific 994

Approval Information

For approval information, please refer to the products specification sheet. For any other information on product certification and documentation information, please visit our certification partner websites: