16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 14 Air Filters 1 Pack Environmental Controllers Regular Feeding: Mix ¼ –

Regular Feeding: Mix ¼ – ½ tsp per gallon of water

They feed on and control all stages of phytophagous mites with all mobile life stages of A

(4) Potassium - 2 oz

This blend includes calcium

Suggested Uses: Use to suppress/control bacteria

16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 14 Air Filters 1 Pack Environmental Controllers Regular Feeding: Mix ¼ –Important 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,