Compatible Models: 213 Replacement Filter size of 20 x 25 x 4 is Designed to perfectly fit 213 Whole House Models 1210, 1620, 2210, 2216, 3210, 4200, NOT Compatible with 1213 Upgrade Kit 2120,2200 Ensure your Filter Replacement fits seamlessly into your existing system. MERV-13 Air Filter: 213 replacement Air filter is MERV 13 rating effectively traps 95% of dust, This synthetic fiber filter cotton offers low resistance and a long service life. The soft and light fiber filter cotton material provides excellent air permeability, ensuring optimal airflow throughout your home. Foldable design, Easy installation: We brings you a convenient folding design that allows the air filter element to achieve maximum airflow Replacing, installing the filter is a breeze, with no assembly, cardboard, or metal reinforcement required. Plus, the foldable design enables easy storage when not in use. Cost Effective: Included 2 pack 213 MERV 13 replacement filters.