Watts RK 957/957RPDA-C 8 RPZ Backflow Preventer

The Watts RK 957/957RPDA-C 8 is a genuine cover kit for 8" 957 / 957RPDA reduced pressure zone (RPZ) backflow preventers.

This 8 inch check sleeve cover kit includes the parts necessary to repair or replace the sleeve cover of the reduced pressure zone assembly, series 957 or reduced pressure detector assembly, series 957RPDA. This kit consists of all parts necessary to repair the first check assembly of the applicable valve. All parts are genuine and original to the valve.

Features

• Factory replacement kit
• No special tools required for changing parts
• All parts are made of high quality materials
• Original parts insure long service life

Common Questions

Will this kit fit my valve?

The RK 957/957RPDA-C 8 fits the 8" size of Watts series 957 / 957RPDA. 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 cover kit — it carries the factory parts for that subassembly only, not a whole-valve rebuild. See the Watts spec sheet for the exact part breakdown.

Are these genuine Watts parts?

Yes. This is the factory RK 957/957RPDA-C 8 kit built with genuine Watts OEM components. Aftermarket parts can void your assembly approval and are commonly rejected by inspectors at annual test time.

Which kit do I need if my relief valve failed the test?

For a relief valve fault on 957 / 957RPDA, order the RV kit for rubber parts only or the VT kit to replace the complete relief valve assembly. This cover kit covers a different part of the assembly.

Specifications

• Type: RPZ
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: RK 957/957RPDA-C 8
• Lead-Free: No
• Product Role: repair_kit
• Kit Type: Cover Kit
• Fits Brand: Watts
• Fits Valve Series: 957;957RPDA
• Fits Valve Size: 8"
• Used With: 8" 957;8" 957RPDA
• Watts Ordering Code: 0899242
• Genuine OEM Parts: Yes