20x20x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 6 Pack pumps-&-irrigation 5 or 7 degrees

5 or 7 degrees

OASIS® Soax® wetting agent in granular form that helps maintain a uniform culture substrate by promoting the even dispersion of water through the root zone

a biological plant stimulator is designed to activate plant cell proliferation by utilizing the Rhizosphere microorganism pathway - mineral nutrient supply can strongly affect root growth morphology

These fixtures are great for ALL STAGES of the grow cycle

high phosphorus fertilizer that also contains a good supply of nitrogen for growth and vigor

20x20x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 6 Pack pumps-&-irrigation 5 or 7 degreesImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. If you are replacing a 4 3 8 depth 20x20x4 filter