Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-21010 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-10322 Ceramic Plunger Price on request CTS-A11374 Tube Assy, SSV to I2V Price on request CTS-A096 Syringe Assembly, 250μL Price on request