The Watts RK SR709/909-RC4 10 is a genuine check rubber parts kit (first or second) for 10" 709 / 909 reduced pressure zone (RPZ) backflow preventers. It features a silicone seat.
Common Questions
- Will this kit fit my valve?
- The RK SR709/909-RC4 10 fits the 10" size of Watts series 709 / 909. 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 check rubber parts kit (first or second) — 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 SR709/909-RC4 10 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 709 / 909 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: Silicone
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Country of Origin: Vietnam
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Warranty: 1 Year Limited
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MPN: RK SR709/909-RC4 10
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Lead-Free: No
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Product Role: repair_kit
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Kit Type: Check Rubber Parts Kit (First or Second)
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Fits Brand: Watts
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Fits Valve Series: 709;909
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Fits Valve Size: 10"
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Used With: 10" 709;10" 909
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Watts Ordering Code: 0888815
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Genuine OEM Parts: Yes
