20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 15 Plus Carbon 4 Pack DUCTWORK Two molded in aluminum 3/4''

Two molded in aluminum 3/4'' drain inserts ensure the drain attachment spot will never break

(x2) Trim Tote with Gasket: Trim receptacle component of Integrated Separation System

Commercial and Boutique Growers from around the World rely on Snow Storm Ultra for consistent results

it  is equipped with an alarm LED that illuminates if the soil is too dry or nutritive substances such as potassium or nitrogen are lacking

Blowers are set to exhaust air out of the enclosure

20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 15 Plus Carbon 4 Pack DUCTWORK Two molded in aluminum 3/4''Important 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,