GrowoniX Deionization Filter Replacement Cartridge, 2.5" x 10" Filter Size:(GROWONIX) 2.5" x 20" Up to 7 lbs

Up to 7 lbs

the trademarked phosphorus booster used in Oneness makes photosynthesis in your plants function optimally

during the last two to three weeks of flowering for added levels of phosphorous and potassium

and auto-start with backup memory

GrowoniX Deionization Filter Replacement Cartridge, 2.5" x 10" Filter Size:(GROWONIX) 2.5" x 20" Up to 7 lbsMixed 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.