This injector is the most current model that is shipping with the LMI pumps. These can be used a direct replacement for old style injection back check valves, just make sure you also buy the appropriate tube connection kit to go with it.
Material: PVDF Body, Ceramic Ball, PTFE Seat, Polyprel O-Ring
Process Connection: 1/2 MNPT
Note: Tube Connection Kits Sold Separately