Check Valve Assembly, Outlet Back Catalog number: 11-1599 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-3832 Wash Seal, PE, 1220, 1260, 1290 Price on request CTS-11380 2690/2695 Performance Maintenance Kit w/Seal Pack Price on request CTS-11312 PEEK™ Rotor, HPV Price on request