Check Valve Assembly, Outlet Back Catalog number: 11-1599 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21100 UPLC Check Valve Assy, Spring Loaded Price on request CTS-21095 Seal Wash (0.0787 ID, Fixed, Bio), 2/pk Price on request CTS-2369 Sapphire Plunger Price on request