20x25x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 2 Pack ventilation 5oz (100g) layer as well

5oz (100g) layer as well as a non-woven 2

Grow Chunks are a larger version (3/4" square) of the popular Grow Cubes

TableTop Brush

Stonewool Block

The Zenport K118-HOE Multi-Tool Harvest Knife is a rugged

20x25x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 2 Pack ventilation 5oz (100g) layer as wellImportant 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