Click to expand Tap to zoom AR Annovi Reverberi Minimatic 4/B Bolt-On Unloader by Precision Soap Sale $156.00 AR21039 w/ Injector | 2-3 GPM - $156.00 AR21040 w/ Injector | 3-4 GPM - $156.00 AR20821 No Injector | 3-5 GPM - $132.00 Model | GPM AR21039 w/ Injector | 2-3 GPM AR21040 w/ Injector | 3-4 GPM AR20821 No Injector | 3-5 GPM 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Bolt-on unloaders have an internal bypass system. Eliminates bypass hose and fittings. May have a built-in injector. RC, XT & XM Pumps 160º F. Maximum 2600 PSI Maximum 1/2" FTP Inlet 3/8" MPT Outlet