Midas brand and stock 12mm, 16mm Type M36C screw-fit semi cartridge seals and 22mm Type M36C push-fit semi cartridge seals to replace Grundfos "H-" code seals installed in CR, CRI, CRIE series vertical multi-stage pumps.Midas brand and stock 12mm, 16mm Type M36C screw-fit semi cartridge seals and 22mm Type M36C push-fit semi cartridge seals to replace Grundfos "H-" code seals installed in CR, CRI, CRIE series vertical multi-stage pumps.