3174 - Dual Knee ValveFisher 3174 Dual Knee Valve Consistent performance, reliability and overall value have helped make Fisher Components an industry standard. Designed with the commercial kitchen operator in mind the Fisher Components are second to none. Features Brass Collection Promotes sanitation, Helps prevent the spread of germs in health sensitive applications Foot Valve Cartridges 1 2" Female NPT Inlets Dual Knee Valve PTB1807031