12x20x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 11.75 x 19.75) - 3 Pack Top Ceiling Box Applications – The dryer vent

Applications – The dryer vent pipe is used for the main trunk line or branch line

Actual Filter Size – 29 3/4"w x 25 3/4" x 1"

Actual Front End Outer Dimensions Are 12" Width X 4" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

+ Product Details Size – 12"w X 18"h is the size for the duct opening measurement only

12x20x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 11.75 x 19.75) - 3 Pack Top Ceiling Box Applications – The dryer vent+ Product Details 12" x 20" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 11. 75" x 19. 75") A unique combination of cotton & synthetic fibers gives you the most filtration and the least air resistance equals great air & easy airflow for your system. The non pleated design provides low airflow resistance while still effectively capturing dirt and particles such as standing dust, spray paint