a) Adopt hermetic head faces with high degree pottery and corrosion resistance for opening and closing, reliable sealing;

b) Adopt the top-mounted (clip-type) connection, and the inlet/outlet and drain ports are glued;

c) Time type or pressure switch type to start backwash;

d) Power failure data protection function and prompt function;

e) With filter, backwash, fast rinse, emptying, bypass, and close functions;

f) With passive pressure switch signal port, remote control port and RS-485 port;

g) With manual forced backwash function and key lock function;

h) Key lock function.