16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 13 Air Filters 1 Pack hydro-x - Designed Specifically for the

- Designed Specifically for the Horticulture Industry

providing the full range of spectral energy required for all stages of plant growth and development

UV-C light is very versatile and can be used for disinfecting water

Outside Dimensions: 35 3/4" x 35 3/4" x 3 3/4"

Powdery Mildew(Sphaerotheca macularis) and Root Rot (Pythium sp

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 13 Air Filters 1 Pack hydro-x - Designed Specifically for theImportant 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,