Aqua-Pure AP420 Compatible Anti-Scale Calcium Reduction Cartridge

KleenWater AP420 Aqua-Pure Compatible (5527407 / 55274-07) Anti-Scale Hot Water Line Protector, Calcium Reduction Replacement Water Filter Cartridge

• Aqua-Pure Hot Water Line Protector and Scale Inhibitor Alternative Water Filter by KleenWater
• Low Cost / High Quality Replacement Alternative Cartridge
• Compatible Replacement for Selecto Scientific 101-260 ScaleOUT
• Alternative Cartridge for GE, 3M Aqua-Pure, Pentek, American Plumber and Other Popular Filters
• Protects Hot Water Heaters From Corrosion and Hardness
  
• Please Note: This cartridge is not rated for hot water, and should be used in cold water applications that feed the hot water line before the hot water heater

3M Aqua-Pure AP420 alternative hot water line protector replacement cartridge. This cartridge has the 2.5" x 9.75" universal dimension that is compatible with a wide array of water filter housings such as Whirlpool, GE, 3M Aqua Pure, Pentek, American Plumber, etc...

Siliphos is the amazing ingredient which allows this cartridge to protect your hot water heater from the deleterious effects of corrosion and hardness. It sequesters the hardness ions thus inhibiting them from precipitating out of the water to create scale. Scale can decrease your hot water efficiency by 30 - 40%. Also the siliphos reacts with the hardness carbonate to secrete a thin glass-like coating on the interior metal surfaces thus protecting from corrosion. Will trap dirt / sediment down to 5 microns.

The KW420 is an ideal cartridge to filter water supplying tank-less hot water systems. These units drastically lose efficiency and functionality when calcium and magnesium cations precipitate during the heating process. The KW420 is ideal for traditional hot water tanks and tank-less systems.