16x20x4 (3 5/8) Pleated MERV 13 Air Filters 1 Pack fans-ventilation-ducting It also features our patented

It also features our patented Lock & Seal plug system design

Mosquito Wipes are 100% biodegradable

Elements Micro is a micronutrient formula developed for plants to help prevent and treat micronutrient deficiencies

Sclerotinia

Contains Non Plant Food Ingredient Silica (derived from Bamboo Extract)

16x20x4 (3 5/8) Pleated MERV 13 Air Filters 1 Pack fans-ventilation-ducting It also features our patentedImportant 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. If you are replacing a 4 3 8 depth 16x20x4 filter