Watts 1/4" Mini Evaporative Cooler Valve and Float

Quarter-Inch Float Valve Assembly

This Watts valve and float kit connects to a 1/4-inch compression fitting for evaporative cooler water supply. The brass body and brass rod resist corrosion while the polyethylene float provides reliable level control. It operates at pressures up to 100 psi and temperatures up to 140 degrees Fahrenheit. Flow rates are 1.5 gpm at 50 psi and 3 gpm at 100 psi.

Verify Compression Fit And Clearance

Confirm your cooler inlet accepts a 1/4-inch compression connection and that the 11-inch overall length fits the mounting bulkhead. The rod uses a 1/4-20 thread and measures 5 1/2 inches long. Ensure the system pressure does not exceed 100 psi and the water temperature stays below 140 degrees Fahrenheit.

Ideal For Standard Evaporative Cooler Repairs

This assembly suits maintenance on coolers designed for a 1/4-inch supply line and the listed pressure range. It is not suitable for installations requiring a different connection size, higher pressure ratings, or hotter water service. Buyers needing larger flow capacity or alternative mounting dimensions should look at other valve configurations.