3 Pack 213 Replacement Filter,MERV 13,Compatible with AprilAire 213 Whole House Air Purifiers Models,1210,1620,2210,2216,3210,4200,HVAC Furnace Filter Replacement,20x25x4 Air Filter

Compatible Models: The 213 Replacement Air Filter is designed to fit AprilAire 213 Whole House Models 1210, 1620, 2210, 2216, 3210, 4200.
Note: It is not suitable for the 1213 Upgrade Kit, Model 2120, or 2200. The nominal size is 20 x 25 x 4 inches (nominal size is an industry standard filter size system to help you easily identify the correct replacement filter, not necessarily the actual size). This filter offers a superior solution that seamlessly integrates into your existing system without any modifications.
Latest US Patent Design: The unique foldable design, utilizing 4 bendable metal strips, allows the filter to be easily folded and unfolded, making replacement and installation a breeze. It also provides good support under high air intake and can be conveniently stored when not in use. By using four sealing strips on the top and bottom, the amount of air bypassing the filter is minimized, providing a better sealing effect.
Easy to install: Unpack, unfold the filter, slide it in, close the doorit's done, without aligning the upper and lower Interlock Rail System. No assembly cardboard, metal strips, or screws are required. This innovative design offers a significant improvement over traditional filters.
Impeccable Performance: This replacement air filter has a MERV 13 rating, effectively trapping 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 usage and environment