16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 13 Air Filters 4 Pack grow media Plants’ roots can easily grow

Plants’ roots can easily grow and thrive in this loose substrate

PLUG DIMENSION (L X W X D) - 7/8” X 13/16” X 1 1/2”

Adds calcium for flavor and health benefits

automatic shut-off

Our convenient Premium Reservoir Kits include one reservoir

16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 13 Air Filters 4 Pack grow media Plants’ roots can easily growImportant 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. We also carry 4 7 8 and 5 1 4 inch depth filters,