Inlet Check Valve Back Catalog number: CTS-A117 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11315 Needle Seal, PEEK™ SIL-20 Price on request CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request 11-2570 Needle Seat Price on request