Hydro-Logic® PreEvolution Chlorashield Size:Hydro-Logic PreEvolution Chlorashield hydrate and calibrate pH probes

hydrate and calibrate pH probes as well as clean and test conductivity (ppm/EC) probes

Easily move the sprayer around by using the attached pull cart or simply take the sprayer off its carriage and wear like a backpack by using the included padded straps

Excellent for use around HPS and MH lights in grow rooms

Simple and easy-to-use

Come in packs labeled with instructions

Hydro-Logic® PreEvolution Chlorashield Size:Hydro-Logic PreEvolution Chlorashield hydrate and calibrate pH probesHydro Logic PreEvolution Chlorashield reduces iron, sulfur, chlorine, chloramines and heavy metals. The pre filters double the filter life. Great for city or well water! Bacteriostatic qualities do not allow microbes to breed in filter. #728772 is 20 in x 2. 5 in. #741630 is 12 in x 2 in. #741640 is 10 in x 4. 5 in.