GP-8A Grout PumpAir-poweredTwin diaphragm, self-priming pumpFor filling concrete block and hollow metal door frames4.6-gal. hopper capacity1 1/2-in. hoseControls include start/stop switch, adjustable speed and pressure valve Request More Info Fill out the form below to request more information about GP-8A Grout PumpSpec & Compare.More From Kenrich Products, Inc.GP Grout PumpsGP-6