Seal Extension Tube Back Catalog number: 11-2569 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request CTS-10686 Needle Seal, Vespel® Price on request 11-4073 LC-30AD Plunger Holder Assembly, UHP2 (w/Diaphragm Price on request