Check the listing for details. WH-1950, 8650419, Parker Gresen V20 1950PSI Main Relief Valve Compatible. Condition: New. Listed at 67.00 USD. Relief Valve WH-1950, 8650419, Parker Gresen V20 Valve Compactable, 1950PSI setting,OEM quality part performance guaranteed. 1 year warranty Shipping in 1 ~3 days. In most sales 1 day. Main relief Valve, set 1950+/-100PSI, 1950~1999 PSI internal shim adjustable.; Reference WH-1950, 8650419 Assembled with K-WH-A ( Part # 8650381) to be external screw adjustable pressure There are below standard pressure setting available too. Buyer can order other pressure under this item. Just state what pressure you require. Other Available Items Pressure range and setting HWH-2550 Set at 2550+/-100PSI@1GPM, 2000~2599PSI internal shim adjustable.; Part # 8650420HWH-1950 Set at 1950+/-100PSI@1GPM,1950~1999PSI internal shim adjustable, Part # 8650419;HWH-1700 Set at 1700+/-100PSI@1GPM,1250~1749PSI internal shim adjustable, Part # 8650418; HWH-1200 Set at 1200+/-100PSI@1GPM,500~1249PSI internal shim adjustable , Part # 8650417