Unloader Valve DX Unset
Fits on the HC165 Triplex Pumps on 500 series including: 550, 550B, 550C, 555, 555SS
Max PSI 1500 Max GPM 6.6
Inlet: 3/8" BSPP-F
Outlet 3/8" BSPP-M
Hotsy Part Number: 921462, 5-3313, 8.715-502.0, 87155020
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