Zurn WilkinsVerified
Zurn Wilkins 375XL Spec Sheet
1-1/2 inch Reduced Pressure Backflow Preventer, No Lead
Product Overview
The Zurn Wilkins Model 375XL Reduced Pressure Principle Assembly offers superior protection against backsiphonage and backpressure in potable water lines, where lead-free* valves are required. Constructed with a reinforced Nylon housing, FDA-approved elastomers, and low lead cast bronze ball valves, this durable unit ensures compliance with ASSE 1013 and NSF/ANSI/CAN 61 & 372 standards. Download the comprehensive spec sheet, view detailed shop drawings, and prepare your project submittal with confidence, knowing you're specifying a robust and compliant backflow solution.
Key Features
- Reduced Pressure Principle Assembly for maximum protection
- Lead-Free* construction for potable water applications
- Available in sizes from 1/2" to 2"
- Reinforced Nylon housing for durability
- Maximum working pressure of 175 PSI and temperature of 180°F
- Optional integral male 45° flare SAE test fitting
- Optional Model SXL lead-free bronze "Y" type strainer
- Optional black fusion epoxy coated ball valves & struts for theft protection
Technical Specs
CertificationsASSE® Listed 1013, cUPC® Listed, CSA® Certified B64.4, AWWA compliant C511, Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California, Meets NSF/ANSI/CAN 61 and 372 (less than 0.25% weighted average lead content)
Available Sizes1/2", 3/4", 1", 1-1/4", 1-1/2", 2"
End ConnectionsThreaded FNPT, ANSI B1.20.1
Struts MaterialStainless Steel, 300 Series
Housing MaterialReinforced Nylon, FDA approved
Springs MaterialStainless Steel, 300 Series
Fasteners MaterialStainless Steel, 300 Series
Internals MaterialDelrin, Nylon
Elastomers MaterialSilicone (FDA Approved), Buna Nitrile (FDA Approved)
Ball Valves MaterialLow Lead Cast Bronze, ASTM B 584
Hydrostatic Test Pressure350 PSI
Maximum Working Water Pressure175 PSI
Maximum Working Water Temperature180°F
About This Spec
Last Verified
April 16, 2026
Status
Verified (1x confirmed)