20x25x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 24.75) - 3 Pack 12in diameter + Product Details Size –

+ Product Details Size – 12"w X 24"h is the size for the duct opening measurement only

+ Product Details Size - 30"w X 14"h X 2"d (for duct opening measurement only)

this grill is the epitome of excellence in both form and function

this boot smoothly connects round pipes or insulated flex ducts to wall stacks

+ Product Details Size – 24"w X 24"h

20x25x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 24.75) - 3 Pack 12in diameter + Product Details Size –+ Product Details 20" x 25" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19. 75" x 24. 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