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Watts LFRK 909M1-RT backflow preventer repair kit in box

Watts

Watts LFRK 909M1-RT Backflow Preventer Repair Kit for Series LF909 1-1/4 to 2 in

SKU CH-94V3-XTWM7

Repair kit restores Watts Series LF909 backflow preventers with cover O-ring, disc assembly, piston and diaphragms included

  • Restores backflow protection with complete repair kit
  • Fits Watts Series LF909 valves from 1-1/4 to 2 in
  • Includes cover O-ring, disc assembly and lubricant
  • Contains piston, RV diaphragm and seat O-ring components
  • Meets NSF lead-free compliance standards for potable water

Kit for Watts LF909 Backflow Preventers

This repair kit is designed for Watts Series LF909 backflow preventers in sizes from 1-1/4 to 2 inches. It provides the internal components needed to restore proper function to a valve that has worn or failed. The kit is intended for plumbing professionals and facility maintenance teams working on potable water systems.

Contents Support Long-Term Valve Reliability

The package includes a cover O-ring, disc assembly, lubricant, multiple O-rings, a piston, an RV diaphragm, and a seat O-ring. These parts address the common wear points that cause leakage or pressure loss during continuous service. Replacing them together helps the preventer maintain a tight seal over extended periods.

Verify Series and Size Before Ordering

Confirm that the installed unit is a Watts Series LF909 model within the 1-1/4 to 2 inch range before purchasing. The components are specific to that series and will not fit other backflow preventer designs. Check the valve body marking to ensure compatibility.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $151.99
Pricier than about 82% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameWATTS
Product typeOther

Questions about this item

How much power does the LFRK 909M1-RT draw when it is running all day?

The LFRK 909M1-RT is a passive repair kit containing O-rings, a disc assembly, piston, diaphragm and lubricant. It has no electrical components and draws zero power.

What existing plumbing components must I already have for the LFRK 909M1-RT to work?

You need a Watts Series LF909 backflow preventer body sized between 1-1/4 and 2 inches. The kit only supplies the internal replacement parts for that specific valve.

Will the LFRK 909M1-RT fit an older Watts 909 series valve that is not the LF909 model?

This kit is specified for the Watts Series LF909 only. Compatibility with older non-LF909 909 series valves is not confirmed by the manufacturer data.

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