20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 13 Plus Carbon 4 Pack Hydro Components and use commercial grade acoustical

and use commercial grade acoustical neoprene foam made specifically for sound deadening

Air quality in our drying room has never been better

Suggested Uses: Use in any soil or soilless growing media (compost

this thermal fogger can be used for long periods at a time without the need to refill

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 13 Plus Carbon 4 Pack Hydro Components and use commercial grade acousticalImportant 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,