• KARCHER Water Softener Dosing Unit order no. 2.209-777.0

    The kit prevents calcification in the system through continuous injection of water softener. Damage to the pump and other important components due to calcification can be prevented in this way. Especially recommended for high feed temperatures and the ST-H version.

    Compatable with:

    HD 13/12-4 ST, HD 7/16-4 ST, HD 9/18-4 ST

    Alternative part numbers :- 2209777, 2.209.777, 22097770, 2.209-777.0

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