Topspin consists of twelve separate drukcomspenserende valves without a check valve that is easy to thyleen 25 mm can be connected. The Topspin has all the advantages and disadvantages of a release valve. However, the Topspin has several advantages:
complete assembly in a home,
no holes punching,
no tools required,
no risk of leakage,
additional filter at the pressure valves.
The valves in the house to replace and separate exit.