Needle Seal O-Ring, 002 Kalrez Back Catalog number: CTS-11149 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21422 Needle Seal Kit Price on request CTS-10600 Check Valve Cartridge, 2/pk Price on request CTS-21567 PM Kit, Seal Wash for Binary Pump G4240A Price on request