Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 8 Pleated Plus Carbon 1 Pack pots-and-containers Already blended with correct proportions

Already blended with correct proportions of perlite and pumice for excellent drainage and a vigorous root system

This combination makes the meter particularly designed to withstand harsh environments such as fertilizer solutions

Get that water flowing and the ppm down with the GrowoniX GXM line of High Flow Membranes

growers will experience an optimal air to water ratio

Remote 15' sensor with photocell for temperature

Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 8 Pleated Plus Carbon 1 Pack pots-and-containers Already blended with correct proportionsImportant 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,