16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 1 Pack ph-ec-tds-meters-and-solutions Broad light spectrum beneficial for

Broad light spectrum beneficial for all phases of plant growth and accurate crop assessment

12 x PotPro™ | Platform

and OK3563430)

• High aerodynamic efficiency

Can be used for 25+ flower cycles before replacement

16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 1 Pack ph-ec-tds-meters-and-solutions Broad light spectrum beneficial forImportant 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,