Quick view U.s. valve 18-4-4Slb Valve Seal 200F 150Psi MSRP: $179.99 18-4-4Slb Valve Seal 200F 150Psi U.S. Valve Linthicum,Md 21090 Flow Model#: 18-4-4Slb Size: 1" Max. Seal Temp: 200F Pressure: 150Psi Patent 6098,656 ... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List