16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 12 Pleated Plus Carbon 1 Pack grow-system/-trays/-reservoirs By simply utilizing Gard’nClean GC

By simply utilizing Gard’nClean GC Liquid at the advised ppm concentration

Replacement regular reel bearing for the CenturionPro Trimming Systems

With dual magnetic closure

Elements Grow is a high nitrogen formula developed to encourage vigorous stem and leaf growth

Replaceable pH Electrode - The HI1271 supplied gel filled pH electrode is 103 mm long and tapers to an 8 mm diameter at the sensing end

16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 12 Pleated Plus Carbon 1 Pack grow-system/-trays/-reservoirs By simply utilizing Gard’nClean GCImportant 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,