20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 2 Pack Nutriants 27 x PotPro™ | Platform

27 x PotPro™ | Platform

Fill solution for double junction pH & ORP electrodes

not included in this case)

Flush – 1 oz

000W DE MH Lamps were designed with the grower’s garden in mind

20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 2 Pack Nutriants 27 x PotPro™ | PlatformImportant 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,