Plunger Seal, Black Back Catalog number: CTS-20612 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10600 Check Valve Cartridge, 2/pk Price on request CTS-21347 Plunger Seal Price on request CTS-21155 Capillary, 300mm x 0.17mm ID, w/Fittings Price on request