Siliphosballsarepoly-phosphate balls coated in silicone. When hard water is heated, the calcium and magnesium stick together, causing limescale. Using Siliphos balls will prevent the bond between magnesium & calcium & eliminate the build-up of corrosive limescale.

• The cartridge can be used in standard 10″ filter housings(bowls)
• Must be used on cold water feed only (before water is heated)
• Prevents limescale and clogged pipes
• Suitable for all water systems

CODE: CW139