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Trusted by water quality professionals for accurate lead and mercury detection in critical water safety applications

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This replacement bulb delivers the precise wavelength and intensity required to neutralize bacteria

Aries (AF-20-3231-BB) 20"x4.5" Big Blue 100% Calcite Cartridge Omnipure Q Series ozone) or organic solvents thatAries Filter Works AF 20 3231 BB 20"x4. 5" Big Blue 100% Calcite Cartridge Pure calcite media for pH correction and acid neutralization in whole house applications 100% Calcite 20" x 4. 5" pH Neutralizer Whole House The Aries AF 20 3231 BB is a specialty cartridge filled with 100% calcite media designed to raise pH levels and neutralize acidic water. This 20 inch Big Blue cartridge fits standard 20" housings and provides reliable pH correction for