WATTS RK 909 CK2 3/4-1" REDUCED PRESSURE ZONE SECOND CHECK REPAIR KIT

Description:

The Watts RK 909 CK2 3/4"-1" Reduced Pressure Zone Second Check Repair Kit is a genuine OEM repair kit designed for servicing the second check assembly in 3/4 inch and 1 inch Watts 909 and LF909 Reduced Pressure Zone (RPZ) backflow preventers. The kit contains all major internal components needed to restore proper second check valve operation, helping maintain reliable backflow protection and extend the service life of the assembly. It is intended for preventive maintenance and repair in commercial, industrial, irrigation, and potable water systems.

Applications:

The RK 909 CK2 repair kit is widely used by plumbers, maintenance technicians, and facility managers to service Watts 909 and LF909 RPZ backflow preventers installed in commercial buildings, municipal water systems, hospitals, schools, industrial facilities, irrigation networks, and fire protection systems. Replacing worn second check components helps restore valve performance, prevent reverse flow, and maintain compliance with cross-connection control and plumbing regulations.

Technical Specifications:

• Manufacturer Part Number (MPN): RK 909 CK2 3/4"-1"
• Ordering Code: 0887121
• Brand: Watts
• Product Type: Second Check Repair Kit
• Compatible Models: Watts 909 and LF909 RPZ Backflow Preventers
• Compatible Valve Sizes: 3/4 in. and 1 in.
• Kit Type: Second Check Valve Repair Kit
• Kit Contents: Disc Assembly, Spring, Seat, Seat O-Ring, Cover O-Ring, Lubricant
• Service Media: Potable Water
• Function: Restores Second Check Valve Performance
• Installation: Internal repair of existing RPZ backflow preventer
• Lead Free: Yes
• OEM Replacement Part: Yes
• No Special Tools Required: Yes
• Application: Reduced Pressure Zone (RPZ) Backflow Preventer Maintenance

Common Replacements:

• Watts RK 909 CK1 3/4"-1" First Check Repair Kit
• Watts RK 909 VT 3/4"-1" Total Relief Valve Repair Kit
• Watts LFRK 909-T 3/4"-1" Total Repair Kit