20x30x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 29.75) - 3 Pack 170BL 25X16 This product can be used

This product can be used for venting most types of heating units

Our elbow couplings are constructed to be smooth and seamless to create a leak-proof connection

and Diffusers

High Quality – High-quality aluminum with counter-sunk screw holes (screws included) and no sharp edges

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 24" OR 24" X 16" duct opening (measured at the opening)

20x30x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 29.75) - 3 Pack 170BL 25X16 This product can be used+ 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