Plunger Holder Back Catalog number: 11-3897 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-3209 Syringe Seal, 250μL/2500μL Price on request 11-1596 Piston Assembly, Sapphire Price on request CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request