20x25x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 24.75) - 3 Pack 12in diameter this grill is the epitome

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

Rigid Built For External Use– The sturdy and rigid design features noise free components that eliminates vibration and excess noise to the louvers

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

actual front end outer dimensions are approximately 26 5/8" width X 18 5/8" height

20x25x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 24.75) - 3 Pack 12in diameter this grill is the epitome+ 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