Actual Size: 19-1/2 x 19-1/2 x 3-3/4 | Nominal Size: 20x20x4
Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR 5-6 rating.
Improved MERV 10 Filtration with similar air flow and resistance as a MERV 8 filter. Durable & Long Lasting: Heavy duty frame won't buckle.
Note: Does not replace 5" inch or 4-3/8" Depth filters. Please check actual filter size needed. Made in the USA. Ideal for residential, commercial, schools, & industrial filtration applications.
For optimal performance, recommended to change at least every 3 months.
