Tubing D-R Assembly Back Catalog number: 11-4150 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-21010 Cartridge Check Valve Housing, 2/pk Price on request CTS-11149 Needle Seal O-Ring, 002 Kalrez Price on request CTS-A096 Syringe Assembly, 250μL Price on request