You can use whatever gas pump you want to feed water through either a 1-1/8” or 1-1/2” thread on pressure fitting, and then adjust the gap to find the ideal balance of pressure and flow for your application. The universal hose adaptors on each end are designed for you to slide your dredge hose into, and permanently attach with glue or tape. Then the threaded rings allow your to easily detach the hose from either side.