Reliable float valves from Grainger can help shut off the flow or water in an open tank or evaporative cooler at a pre-determined level. Bronze float valves feature machined-in seats and Buna N seals, cotter pin pivot assemblies and fully adjustable float arms. Bulkhead-mount valves feature a machined flange on the inlet side with male straight pipe threading from the locknut. Evaporative cooler float valve assemblies offer adjustable brass arms, polyethylene floats and Buna N seals. Shop Grainger today for high-quality float valves.