Piston Assembly, Sapphire Back Catalog number: 11-1596 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11095 Check Valve, Double Ball & Seat Price on request 11-4122 PTFE Diaphragm, LC-30AD/i-Series, 2/pk Price on request 11-2642 Needle Port Seal, AS-100, ASI-100T Price on request