The Watts RK 957/957RPDA-CK2 2 1/2-4 is a genuine second check kit for 2 1/2" to 4" 957 / 957RPDA reduced pressure zone (RPZ) backflow preventers. It features a epdm seat.
This second check repair kit provides all the parts necessary to repair or replace the second check on a 2 1/2 to 4 inch reduced pressure valve assembly backflow preventer, model 957 and reduced pressure detector assembly backflow preventer, model 957DCDA. This kit consists of second check module, check module O-ring and EPDM disc elastomer.
Features
- Factory replacement kit
- No special tools required for servicing
- All parts are made of high quality materials
- Parts are specific to valve size
Common Questions
- Will this kit fit my valve?
- The RK 957/957RPDA-CK2 2 1/2-4 fits 2 1/2", 3" and 4" sizes 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 second check kit. Kit consists of: second check module, check module O-ring and EPDM disc elastomer.
- Are these genuine Watts parts?
- Yes. This is the factory RK 957/957RPDA-CK2 2 1/2-4 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?
- Not this one — this kit services the check valve. A failed relief valve needs the RV (rubber parts) or VT (total relief valve) kit for 957 / 957RPDA in your size; a total repair (T) kit covers the relief valve and both checks.
Specifications
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Type: RPZ
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Seat / Seal Material: EPDM
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Country of Origin: United States
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Warranty: 1 Year Limited
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MPN: RK 957/957RPDA-CK2 2 1/2-4
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Lead-Free: No
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Product Role: repair_kit
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Kit Type: Second Check Kit
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Fits Brand: Watts
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Fits Valve Series: 957;957RPDA
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Fits Valve Size: 2 1/2";3";4"
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Used With: 2 1/2" 957;2 1/2" 957RPDA;3" 957;3" 957RPDA;4" 957;4" 957RPDA
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Kit Contents: Kit consists of: second check module, check module O-ring and EPDM disc elastomer.
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Watts Ordering Code: 0899216
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Genuine OEM Parts: Yes
