AXEON PH-4520 pH Neutralizing Calcite Cartridge, 4.5 Inch x 20 Inch Inline Duct Fans while having benchmark low level

while having benchmark low level of impurities

When used as directed

For even greater control and to assure long term effectiveness

or other growing media

AXEON PH-4520 pH Neutralizing Calcite Cartridge, 4.5 Inch x 20 Inch Inline Duct Fans while having benchmark low levelAXEON 4. 5" x 20" Calcite Filter Cartridges will fit most standard filter housings and come filled with 0. 15 cubic feet of Calcite Media. Acidic waters on contact with Calcite slowly dissolve the calcium carbonate to raise the pH which reduces the potential leaching of copper, lead and other metals found in typical plumbing systems. AXEON Calcite Cartridges come with built in pre and post filters to keep the media from being washed out of the filter