Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Back Catalog number: 11-2401 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-3195 250μL Syringe Tip Price on request CTS-21586 1100 Series Essential Pack, G1310A/G1311A Pump Price on request PL7050350 MarvelXACT PLS 50µm x 350mm Price on request