Housing key Kalko Innova & Aqua Fidelo

Key for opening the housing and replacing the filters for the "Kalko Innova" limescale protection devices and the "Aqua Fidelo" series house and well filters (manufacturer Prime Inventions).

The inner diameter of the key is 154.5 mm between the pins and 148.2 mm across the pins. The tenon width is 10.5 mm. The pivot distance 19 mm.

The key fits the 10" and the 20" housing.