Anti-Limescale Water Softening Filter Cartridge for Professional Heavy Duty Steam Ironing Presses Replacement water filter cartridge for the Professional Heavy Duty Steam Ironing Press range Extends the lifetime of your HD ironing press and its steam function Compatible with models: 71HD-White, 71HD-Silver, 81HD-White, 81HD-Silver, 91HD-White, 91HD-Silver, 101HD-White, 101HD-Silver Unique anti-scale filter helps protect the machine and maintain efficient steam performance Allows the use of tap water Easy to replace water filter cartridge Replace every 6 to 12 months depending on usage; resin changes color to indicate replacement time Resin turns purple when it needs replacing; replace when color reaches approximately 0.5cm from the top of the cartridge Contains filtration media pre-installed and ready to use Filters water and helps balance pH to near neutral Helps prevent limescale buildup in the steam generator Replacement frequency depends on water hardness and steam usage Press may have an indicator to signal when replacement is needed The Ironing Press Company Trusted supplier of ironing presses and accessories since 1977