Watts RK 909-CK1-SS Lead-Free RPZ Backflow Preventer

The Watts RK 909-CK1-SS is a genuine lead-free first check kit (stainless) for 3/4" to 1" 909 / LF909 reduced pressure zone (RPZ) backflow preventers. This model is certified lead-free for potable-water installations.

This check repair kit provides all the parts necessary to repair the first check on a 3/4 to 1 inch lead free reduced pressure zone assembly, model 909M1. This kit consists of all parts necessary to repair the applicable reduced pressure zone assembly. All parts are genuine and original to the valve.

Features

• Factory replacement parts
• 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 909-CK1-SS fits 3/4" and 1" sizes of Watts series 909 / LF909. 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 first check kit (stainless) — 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 909-CK1-SS 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 909 / LF909 in your size; a total repair (T) kit covers the relief valve and both checks.

Specifications

• Type: RPZ
• Pack Quantity: 24
• Country of Origin: United States
• Warranty: 1 Year Limited
• MPN: RK 909-CK1-SS
• Lead-Free: Yes
• Product Role: repair_kit
• Kit Type: First Check Kit (Stainless)
• Fits Brand: Watts
• Fits Valve Series: 909;LF909
• Fits Valve Size: 3/4";1"
• Used With: 3/4" 909;3/4" LF909;1" 909;1" LF909
• Watts Ordering Code: 0887122
• Genuine OEM Parts: Yes