GrowoniX Deionization Filter Replacement Cartridge, 4.5" x 10" Filter Size:(GROWONIX) 2.5" x 20" For crop production apply about

For crop production apply about 10 cups of Crown Jewels Grow to 100 ft2

Clear and odorless

GMP-Compatible

FIFRA 25(b) Exempt

GrowoniX Deionization Filter Replacement Cartridge, 4.5" x 10" Filter Size:(GROWONIX) 2.5" x 20" For crop production apply aboutMixed 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.