16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 2 Pack Cone Filler office and greenhouse are missing

office and greenhouse are missing the connection to their vital energy source

The FloraFlex Air Bleed Valve (3/4'') can be installed on any mainline to prevent air locks

Blow up your buds and power your flowers with the nutrient mix that kicks plants in the pants

The respective companies lead the field in LED R&D

Start seedlings and clones at 20–30% power and gradually increase intensity as plants mature

16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 2 Pack Cone Filler office and greenhouse are missingImportant 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,