Needle Seal, PEEK™ SIL-20 Back Catalog number: CTS-11315 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A125 Inlet Check Valve Assembly Price on request CTS-10758 Pump Seals, High Pressure Price on request CTS-A094 Check Valve Cartridge, 2/pk Price on request