Plunger Seal Back Catalog number: CTS-21347 Availability: In the manufacturer's stock Price on request - + Recommended CTS-11380 2690/2695 Performance Maintenance Kit w/Seal Pack Price on request CTS-10600 Check Valve Cartridge, 2/pk Price on request PL7100350 MarvelXACT PLS 100µm x 350mm Price on request