AQUAPHOR KH - K4 cartridge for water softening and descaling for Kristall H

AQUAPHOR KH – K4 cartridge for water softening – limescale protection & soft water for 0.15 m³/h

Suitable for CLICK-TURN filter systems such as AQUAPHOR Kristall, Kristall H, and other water softening systems. The AQUAPHOR KH cartridge is a highly efficient ion exchange resin for the targeted removal of limescale and for water softening in the home. By binding calcium and magnesium ions (Ca²⁺ / Mg²⁺) to a sodium (Na⁺)-loaded resin, so-called hardness minerals are reliably removed – for pleasantly soft, limescale-free water.

The cartridge effectively protects against limescale deposits in household appliances, extends their lifespan, and significantly contributes to an improved taste of drinking water. Ideal for those who want to avoid plastic bottles while still enjoying high-quality water.

The CLICK-TURN system enables quick, hygienic, and tool-free cartridge changes—convenient and clean with just one hand. The KH cartridge sustainably supports the performance of your filter system and ensures consistent water quality throughout your daily use.

Technical data

• Filter type:  KH (ion exchanger for water softening / limescale reduction)
• Capacity:  Softening depending on water hardness range (see below)
• Housing material:  plastic
• Dimensions:  approx. 313 x 85 mm
• Max. operating pressure:  6 bar (0.6 MPa)
• Operating temperature:  5–35 °C
• Maximum flow rate:  0.15 m³/h
• Replacement interval:  At least every 6 months, depending on water hardness and usage
• Filter performance:  Removal of calcium, magnesium, lime, taste & odor
• Premium quality
• CLICK TURN system for easy self-assembly
• Hygienic filter change without contact with contaminated water
• Made in EU