20x25x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack tents-/-indoor-greenhouses Growth Science® Base B and

Growth Science® Base B and Growth Science® Base A should be used together for best results

0 AdjustaDrive is the newest linear light mover available from Gualala Robotics Inc

and high output in any growing environment

both are reflective

The meter can easily and quickly be recalibrated with digital calibration to pH 4

20x25x4 (3 5/8) Pleated MERV 10 Air Filters 1 Pack tents-/-indoor-greenhouses Growth Science® Base B andImportant 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 20x25x4 filter