20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 1 Pack complete grow kit sealed rooms with high temperature

sealed rooms with high temperature triggered exhaust fans

Custom Grow Pods for easy planting and harvesting

Boosts plant yields in fruiting and flowering plant varieties

Trellis Netting is made of a flexible

20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 1 Pack complete grow kit sealed rooms with high temperatureImportant 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,