Plunger Wash Seal Back Catalog number: CTS-10391 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11372 Tube Assy, Transducer to Check Valve, I2V Price on request CTS-21421 PM Kit, 1290 Binary Pump Price on request CTS-10761 HPMV 1 & 2 Rebuild Kit w/Spool Price on request