The SW305 water inlet and outlet are both 1″ pipe threads. Install this Hard Water Filter AFTER your pumps pressure tank and do not allow it to freeze.
Install the filter right after the water meter if possible with the direction mentioned ( the red arrow).
The SW305 unit and the additional electric descaler are to be installed in copper or PVC/plastic piping. However, the SW305 unit on it’s own can be installed on most types of plumbing but the electric descaler on it’s own is not to be used on other types of plumbing.
Optionally, installing a water shut-off valve on the inlet side or a three-valve by-pass will make serving more convenient later.