No spring design
Fliter cartridge is designed without springs, while filtration, the inlet water pressure compacts the disc sets automatically, thus the pressure required for backwash is decreased greatly. Safe, efficient advantage obviously outstanding!
Unique built duckbill design
Unique built duckbill check valve ensure high water output during the filtration process, as well as greater backflow check valve function while backwash process.
Special devices
 Every filter unit has air evaluation valve with indicator device preventing water hammer, as well as improving filter cartridge backwash.
Self-locking buckle with seal ring
Special design makes the whole filtration system installing and disassembling quickly and easily.