20x25x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 6 Pack 9 CFM There are two pockets in

There are two pockets in the top of the case specially made for the probes

Use Organicare Pure Organic-Based Plant Food with Humex Soil Booster

No brewing necessary

Their smart design with grip edge allows easy handling

Always use equal parts of Athena Grow A & B to maintain proper mineral ratios

20x25x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 6 Pack 9 CFM There are two pockets inImportant 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