For installing automatic ice maker kits on refrigerators. Kit includes angle needle valve designed to control accurate water flow into evaporative cooler units, plus a saddle clamp that permits installation in water pipe nearest humidifier unit. Furnished complete with copper tube insert and gasket. Cadmium-plated clamps and bolts. Saddle clamp is made to fit 3/8 in, 1/2 in and 3/4 in.