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Wilkins 975XL 3/4-inch Reduced Pressure backflow preventer; cast bronze body and FNPT threaded connections visible from front and side.

Wilkins 975XL 3/4" Reduced Pressure Backflow Preventer (Bronze)

Brand: Zurn Industries, LLC
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$1,078.99
$809.24
SKU 34-975XL

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The Wilkins 975XL 3/4" Reduced Pressure Principle (RPZ) Backflow Preventer is engineered for high-hazard protection where cross-connection control is required. Its short-lay, wye-pattern design and cast bronze body make it a compact, serviceable choice for irrigation and non-potable water applications. The assembly protects potable supplies from backsiphonage and backpressure and is designed to minimize installation and maintenance time.

  • Nominal size: 3/4" (FNPT connections)
  • Body material: Cast bronze with corrosion-resistant internals
  • Maximum working pressure: 175 psi
  • Temperature range: 33°F to 180°F (typical)
  • Design: Wye-pattern, short lay-length for compact installations
  • Serviceability: Separate access to each check valve and the relief valve; replaceable seats and rubber repair kits available
  • Approvals & listings: ASSE 1013 and common industry listings (UL, CSA, IAPMO, AWWA where applicable)

Installers value the 975XL for its proven reliability, ease of repair and reduced labor during service. Replacement parts and repair kits are widely available, and Zurn/Wilkins installation and maintenance instructions and specification sheets are published for field guidance. For applications requiring stainless steel or lead-free alternatives, consult the manufacturer’s model variations and spec sheets to select the correct option for corrosive or potable systems.

What’s included: Factory-assembled 975XL backflow preventer (standard RPZ configuration). Accessories, shutoff valves, freeze-protection options and specialty configurations are available separately. Refer to the product’s specification sheet and installation manual before installation to confirm local code compliance and test/maintenance intervals.

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Frequently Asked Questions

What pipe size and pressure rating does this model support?
This Wilkins 975XL is a 3/4" nominal RPZ model rated to 175 psi with a typical temperature range of 33°F to 180°F.
How is the 975XL serviced and repaired in the field?
The wye-pattern bronze body provides separate access to each check and the relief valve; rubber repair kits and replacement seats are available.
Is this model approved to common industry standards?
Yes. The 975XL family meets ASSE 1013 and is listed to common certifications such as UL, CSA, IAPMO and applicable AWWA standards.

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