Outlet Check Valve Back Catalog number: CTS-A11187 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21164 Rotor Seal, 6 port, Rear Price on request 11-4133 Gold Plunger Seal Price on request CTS-11315 Needle Seal, PEEK™ SIL-20 Price on request