PI-Wasser limescale pre-filter set for PI-Power Compact systems

PI® water limescale pre-filter set for PI Power Compact systems (with housing)

This special filter should be used in cases of heavy limescale build-up or fluctuating tap water values.
This protects the diaphragm and the pump, thus extending their service life.

Recommendation:
Install the anti-limescale pre-filter if the raw water hardness in
rural areas above 22° dH/39.2° fH and in
urban areas above 25 °dH/44.5° fH .