Air Bear 16x25x5 (4 7/8) Replacement 259112-105 Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 4 Pack spl_ps Research has shown that Leonardite

Research has shown that Leonardite is the best source for humic and fulvic acids because its biological activity is much greater than other sources of humic acid

Bluelab recommend that the solutions are de-cantered into a smaller vessel and the contents discarded when the calibration process has been completed

60-inch (1524mm) fixed length pruner

single bar design

Bipolar Ionization Technology – Releases both positive and negative ions to actively neutralize airborne pollutants

Air Bear 16x25x5 (4 7/8) Replacement 259112-105 Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 4 Pack spl_ps Research has shown that LeonarditeImportant 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. We also carry 4 3 8 and 5 1 4 inch depth filters,