20x25x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack Terp Derp shrubs and medicinal crops

shrubs and medicinal crops

The level of your pH is an essential factor in deciding which nutrients are available for your plants to uptake

walkway edges

Torched is tough on broadleaf weeds and grasses while being gentle on your conscience

Bluelab PeriPod M4™ will maintain stable pH and nutrient levels in your reservoir

20x25x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack Terp Derp shrubs and medicinal cropsImportant 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