2-Pack 216 Filter Replacement Compatible with AprilAire 216 Whole House Air Purifiers Models,1210,1620,2210,2216,3210,4200,MERV 16 Furnace Filter Replacement,fit for20x25x4Furnace

["Compatible Models: 216 Replacement Air Filter is Designed to perfectly fit Aprilaire 216 Whole House Models 1210,1620,2210,2216,3210,4200 NOTE: Not Fit for 1213 Upgrade Kit ,Model 2120, 2200.","Revolutionary innovative design (patented):The unique foldable design,by using 4 bendable metal strips, the filter can be easily folded and unfolded, Replacing, installing the filter is a breeze. It also provides good support under high air intake and can be easily stored when not in use. By using four sealing strips on top and bottom, the amount of air bypassing the filter can be minimized to provide better sealing effect.","Revolutionary innovative design (patented):The unique foldable design,by using 4 bendable metal strips, the filter can be easily folded and unfolded, Replacing, installing the filter is a breeze. It also provides good support under high air intake and can be easily stored when not in use. By using four sealing strips on top and bottom, the amount of air bypassing the filter can be minimized to provide better sealing effect.","Easy to install: Unpack, Unfold the filter, Slide in, Close the door, It's done, without aligning the upper and lower Interlock Rail System, No assembly cardboard or metal strips and screws This innovative design offers a significant improvement over traditional filters.","Impeccable Performance: The replacement Air filter is MERV 16 rating effectively traps 98% of dust, pollen, pet dander, and other airborne particles as small as 0.3 microns, The soft and light fiber filter cotton material provides excellent air permeability,low resistance and a long service life,ensuring optimal airflow throughout your home.Vacuum and Dust less often by preventing airborne particles from settling on your furniture and flooring promoting cleaner and healthier air in your home. It is recommended to replace every 6-12 months depending on the usage and environment."]