UPLC Check Valve Assy, Spring Loaded Back Catalog number: CTS-21100 Availability: In the manufacturer's stock Price on request - + Recommended CTS-10285 TFE 3-Way Valve 4 (V4) Price on request CTS-21586 1100 Series Essential Pack, G1310A/G1311A Pump Price on request CTS-21480 Check Valve, Cartridge Price on request