20x30x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 29.75) - 3 Pack Insulated Line Set + Product Details Size –

+ Product Details Size – The size 30-gauge stick-on collar is 12" and it is compatible with duct 12"

This design minimizes waste

+ Product Details Size – 18"w X 34"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 18 5/8" width X 14 5/8" height -

+ Product Details Size – 30"w X 8"h pleated MERV 8 filter for HVAC return filter grille - 3 Pack

20x30x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 29.75) - 3 Pack Insulated Line Set + Product Details Size –+ Product Details 20" x 30" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19. 75" x 29. 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