Features and Benefits: NPT: 1/4" female national pipe threads; MAXIMUM: Operating pressure range of 30 to 35 pounds per square inch; MATERIAL: Stainless steel springs, zinc alloy body and nitrile rubber hose; Made in USA; Milton (209) 1/4" NPT Rubber Filler Spout FaucetThis 1/4" FNPT filler faucet provides easy operation and smooth flow, providing a long spout and lever control. These filler faucets are heavy duty, ruggedly built with stainless steel springs. Made up of a zinc alloy body and a 4" nitrile rubber filler spout, this faucet offers 30 to 35 PSI.