GrowoniX Deionization Filter Replacement Cartridge, 4.5" x 10" Rosin Bags Agitate and allow one hour

Agitate and allow one hour before use to ensure solution reached full strength

Solar-Powered

DIRECTIONS: Add 5-10 mL per gallon

Keep the container tightly closed

GrowoniX Deionization Filter Replacement Cartridge, 4.5" x 10" Rosin Bags Agitate and allow one hourMixed bed deionization resin for polishing the final bits of TDS from RO water. For those who need absolutely pure water. Great for aquarium systems, or those with certain well water issues. Mixed bed deionization resin to eliminate the final bits of TDS PPM in RO water. For those who need absolutely pure water. Great for aquarium systems, laboratory use, or those with certain well water issues. Available in 2510, 2520, 4510, and 4520 size cartridges.