*Manifold Block
*1/2 in FNPT x 1/2 in FNPT
*Max. PSI 5000
*Zinc Plated Steel
*Includes: (2) cap screws and (2) lock nuts
*Bolt unloader to block by using 1/2 in MNPT close pipe nipple.
*Allows mounting of unloader on system instead of pump.
*Decreases vibration from pump to unloader.