Zurn Wilkins 975XLU 1" Reduced-Pressure Backflow Preventer w/Unions - 1-975XLU
The Wilkins 975XLU is a 1" reduced-pressure principle backflow preventer built for reliable protection of high-hazard, non-potable water systems. Its compact wye-pattern bronze body and union connections make installation and service straightforward while providing robust backflow protection for irrigation and commercial applications.
Use the 975XLU where cross-connection protection is required and a durable, serviceable assembly is preferred. Always consult local codes and a qualified plumbing or irrigation professional for correct installation, testing intervals, and inspection procedures. Refer to the product specification sheet for dimensional data and parts information.
Features
- Reduced-pressure principle assembly designed for high-hazard applications.
- 1" nominal inlet/outlet size for standard 1-inch piping systems.
- Bronze wye-pattern body for corrosion resistance and long service life.
- Assembled with union ball valve shutoffs for fast isolation and servicing.
- Male pipe thread connections for common plumbing installations.
- Rated working pressure: 175 psi for typical irrigation and commercial lines.
- Wye-pattern layout and unions allow easier access to internal components.
What our Experts Think
-
Reliable high-hazard protection: The Zurn Wilkins 975XLU 1" Reduced-Pressure Backflow Preventer w/ Unions (1-975XLU) is designed to protect potable water systems from backsiphonage and backpressure contamination in irrigation and commercial applications.
-
Union design for fast service: Built with union ball valve shutoffs, allowing the entire assembly to be isolated and removed quickly for maintenance or seasonal winterization.
-
Durable bronze construction: Features a cast bronze wye-pattern body and stainless-steel internals for strong corrosion resistance and long service life in outdoor installations.
-
Designed for ease of maintenance: Accessible internal components and modular design help reduce downtime and simplify inspections and repair work.
-
Code-compliant performance: Widely certified for potable water protection, meeting major standards such as ASSE 1013, CSA, IAPMO, and AWWA C511 requirements.
-
Popular irrigation-grade choice: Frequently used in residential and commercial irrigation systems where reliable backflow prevention and seasonal removal are required.
-
Important note: This model is part of the 975XLU series, which has been discontinued and replaced by updated 975XL2U versions for new installations.
Q&A
Maintenance Tips
Damage 
Loss 
Theft 
