Description Manuals Videos Articles Popular Accessories Clemco Part #05528 1-1/4 Inch National Pipe Thread Flow Control Valve for WetBlast Flex Base Unit Injector System and Nozzle Adaptor-Injector. WetBlast Flex Base Unit Injector Item #21 WetBlast Flex Nozzle Adaptor-Injector Assembly Item #21 Dustless (Wet) Sandblasting Benefits Slurry Blast, Venturi Blast, and Vapor Blasting Is Dustless Blasting Really Dustless? Related Parts (5) Parts Included (5) 1-1/4" NPT x 4" Nipple #01720 $10.91 1014 1/4" NPT CBM Gauge #11830 $41.06 1052 3/4-NPT Ball Valve w/Handle #28551 $60.55 1067 1/4" NPT Check Valve #28557 $83.76 1071 Control Valve #24809 $133.49 1124