Hydro-Logic PreEvolution High Capacity Pre-Filter Hydro-Logic Thanks to the 4-bar design

Thanks to the 4-bar design of the ROI-E420 and a small fixture that sends light from the center

Ful-Power will maximize your potential

Growcubes are difficult to overwater if the container has good drainage

1 - 25' roll of 3/4" tubing

Hydro-Logic PreEvolution High Capacity Pre-Filter Hydro-Logic Thanks to the 4-bar designHydro Logic Chlorashield membranes remove 100% of chloramine and are great for city water. Rated at 1 GPM down to 1 micron. They are made in the USA and have a low pressure drop combined with exceptionally high dirt holding capacity. HGC728772 is for Evolution RO systems (20 in x 2. 5 in) and should be replaced after 2,500 gallons. HGC741668 is for TallBoy systems (20 in x 2. 75 in) and should be replaced after 6,000 gallons. HGC741640 is for