20x25x4 (3 5/8) Pleated MERV 8 Air Filters 6 Pack flowering depending on your unique home

depending on your unique home or office environment

For a measurement guide

Removes scale and hard water deposits

can be further distributed with tees in order to provide aeration via air stones to up to twelve hydroponics buckets or system reservoirs

RAW® Classic 1-1/4 size creaseless rolling papers in a 300 leaf pack

20x25x4 (3 5/8) Pleated MERV 8 Air Filters 6 Pack flowering depending on your unique homeImportant 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