Check Valve Assembly, Inlet Back Catalog number: 11-1598 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11151 Needle Assembly, PEEK™ Price on request CTS-10686 Needle Seal, Vespel® Price on request CTS-21566 PM Kit, Seal Wash for Binary Pump G4204A Price on request