Zurn RK8-375 Relief Valve Repair Kit

The Zurn Wilkins RK8-375 is a genuine relief valve repair kit for 8" to 10" Model 375 / 375A / 375AST / 475.

The Complete Relief Valve Repair Kit is compatible with the 8” and 10” Model 375, 375A, 375AST, 475, and 475V Reduced Pressure Principle Backflow Preventer. Repair Kit components include one Upper Plunger O-Ring, one Diaphragm, one Seal Ring, one Relief Valve Spring, one Relief Valve Seat O-Ring, and one Relief Valve O-Ring. The accessories within the kit allow you to speed up repairs, while lowering maintenance costs and extending the product life. The Wilkins portfolio offers long-lasting protection from backsiphonage and backpressure of contaminated water into the potable water supply.

Features

• Accessories allow for speedy repairs
• Repair Kits provide cost savings by avoiding full Backflow Preventer replacement
• Complies with ASSE® Listed 1013 and C-UL® Classified
• Quality materials extend replacement life
• 1-year limited warranty

Common Questions

Will this kit fit my assembly?

The RK8-375 fits 8" and 10" sizes of Model 375 / 375A / 375AST / 475 / 475V. Kits are size- and series-specific, so match the model stamped on your valve body or cover before ordering.

What's included in this kit?

This is a relief valve repair kit -- it carries the factory parts for that subassembly only, not a whole-assembly rebuild.

Are these genuine Zurn Wilkins parts?

Yes. This is the factory RK8-375 kit built with genuine Zurn Wilkins OEM components. Aftermarket parts can void your assembly approval and are commonly rejected by inspectors at annual test time.

Specifications

• Type: 8" and 10" Model 375/375AST/475/475V Complete Relief Valve Repair Kit
• MPN: RK8-375
• Fits Series: 375;375A;375AST;475;475V
• Fits Size: 8";10"
• Kit Type: Relief Valve Repair Kit
• Kit Contents: Kit consists of: one Upper Plunger O-Ring, one Diaphragm, one Seal Ring, one Relief Valve Spring, one Relief Valve Seat O-Ring, and one Relief Valve O-Ring.