Watts RK 909M1-S Check Valve

The Watts RK 909M1-S is a genuine seat kit for 909M1.

Features

• Factory Replacement Kit
• No special tools required for changing parts
• All parts are made of high quality materials

Common Questions

Will this kit fit my valve?

The RK 909M1-S fits Watts series 909M1, design revision M1 only. Watts changed internal parts between revisions, so check the model stamped on your valve body or cover before ordering.

What's included in this kit?

This is a seat 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 909M1-S 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 909M1, order the RV kit for rubber parts only or the VT kit to replace the complete relief valve assembly. This seat kit covers a different part of the assembly.

Specifications

• Type: Check
• Pack Quantity: 6
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: RK 909M1-S
• Lead-Free: No
• Product Role: repair_kit
• Kit Type: Seat Kit
• Fits Brand: Watts
• Fits Valve Series: 909
• Fits Model Revision: M1
• Watts Ordering Code: 0887139
• Genuine OEM Parts: Yes