16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 1 Pack Ventilation/Air Conditioning Helps improve flowering and bloom

Helps improve flowering and bloom development

Size: 32x18

This probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions

Recipe Stages

Parts and Repairs - Zenport Warranty: 5-Year Battery

16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 1 Pack Ventilation/Air Conditioning Helps improve flowering and bloomImportant 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,