1All axial movement has been eliminated, preventing wear on the shaft and rubber parts. 2The cartridge seal is a balanced type seal, which makes it less insensitive to pressure. 3Used for balance sealing. Easy to install, easy to replace without disassembling the pump parts. 4Cartridge design provides unparalleled advantages. All of this ensures extra reliability. 5Combines the best features of standard seals and is cleverly packaged. Suitable for CR series pumps. 6Durable seals are made of wearresistant materials to prevent downtime and prolong the life of the seal.