Fortify 16x25x5 MERV 11 fits Lennox X6670, HCF16-11 Air Filter. Qty 2
Fortify provides dependable filtration for whole-house HVAC systems.
Fortify 20x25x4 MERV 11 replacement for AprilAire 210 Air Filters. Qty 3
Actual Size: 20.125 x 24.25 x 3.75 | Nominal Size: 20 x 25 x 4 | Always check actual size for proper fit. ● No Assebly Required, Effortless Installation, Ready to Use: Easy to install — simply slide into your existing air purifier’s rail system.
Fortify 20x25x4 MERV 11 replacement for AprilAire 210 Air Filters. Qty 1
Actual Size: 20.125 x 24.25 x 3.75 | Nominal Size: 20 x 25 x 4 | Always check actual size for proper fit. ● No Assebly Required, Effortless Installation, Ready to Use: Easy to install — simply slide into your existing air purifier’s rail system.
Fortify 20x25x4 MERV 11 replacement for AprilAire 210 Air Filters. Qty 4
Actual Size: 20.125 x 24.25 x 3.75 | Nominal Size: 20 x 25 x 4 | Always check actual size for proper fit. ● No Assebly Required, Effortless Installation, Ready to Use: Easy to install — simply slide into your existing air purifier’s rail system.
Fortify 20x25x4 MERV 11 replacement for AprilAire 210 Air Filters. Qty 5
Actual Size: 20.125 x 24.25 x 3.75 | Nominal Size: 20 x 25 x 4 | Always check actual size for proper fit. ● No Assebly Required, Effortless Installation, Ready to Use: Easy to install — simply slide into your existing air purifier’s rail system.
Fortify 20x25x4 MERV 11 replacement for AprilAire 210 Air Filters. Qty 2
● Fortified with Gasket Seals for Cleaner Air: Built with top and bottom gasket seals that ensure a snug fit, minimizing dirty air bypass that can reduce filter effectiveness in other models.