Check Valve Assembly, Inlet Back Catalog number: 11-1598 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21564 Needle, Uncoated 10 Series Price on request CTS-10323 Sapphire Plunger Price on request CTS-10788-5 Needle Wash Frit, 5/pk Price on request