Description Manuals Videos Articles Popular Accessories Clemco Part #28557 1-1/4" National Pipe Thread Check Valve for WetBlast Flex Base Unit Injector. WetBlast Flex Base Unit Injector Item # 27 Dustless (Wet) Sandblasting Benefits Slurry Blast, Venturi Blast, and Vapor Blasting Is Dustless Blasting Really Dustless? Related Parts (5) Parts Included (5) Swivel connector, 1/4 npt #23829 $19.84 569 1-1/4" NPT x 4" Nipple #01720 $11.48 1014 1/4" NPT Flow Control Valve #05528 $112.02 1034 1/4" NPT CBM Gauge #11830 $43.27 1052 3/4-NPT Ball Valve w/Handle #28551 $63.58 1067 Customers Also Viewed Clemco Lightweight Blast Suit $144.94 - $237.02 Dust Collector Gasket #27464 $5.53 Clemco Apollo 600 HP DLX Supplied Air Respira… $874.12 - $1,011.54