Needle Seal, Vespel® Back Catalog number: CTS-10686 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10694 Plunger Seal Price on request CTS-10711 Alliance Head Plunger Seal Kit, Black, 2/pk Price on request CTS-A094 Check Valve Cartridge, 2/pk Price on request