The CalPhos venturi system is easy to fit and quick to fill up. This robust inhibitor is effective in preventing the hard build-up on pipes, shower heads, washing machines, boilers and other devices connected to the mains water. The inhibitor works by passing water through calibrated nozzles, creating a suction of polyphosphates and water solution from the bowl. A proportional dose is then delivered into the water system and calcium is prevented from crystallising.
The polyphosphate cartridges are long-lasting, replaceable and are 100% compatible with drinking water.

The RS PRO CalPhos Replacment Cartridges (894-6960) are compatible with CalPhos Polyphosphate Scale Inhibitor (894-6951)

• Proportionally dosing venturi system
• Low running costs
• Long cartridge life
• Head made of compound plastic with venturi flange
• Built-in bypass
• Vertical or horizontal installation
• See through glass - no waste
• Safe for drinking water and other foodstuffs

Ideal for preventing calcium crystallisation in the water and forming a hard encrustation on pipes, boilers, shower heads, taps, washing machines and dishwashers, and so on.

Pack of CalPhos replacement cartridges 8946960