Lennox X8789 Furnace Filter 16x26x5 Healthy Climate MERV 16 for PC016-28 PureAir System Package of 1 19 1/2" x 19 1/2" x 3 3/4" 500 CFM Models for up

500 CFM Models for up to 4000 square feet

Actual Size: 17 1/4" x 24 7/8" x 2 9/16"

Must Have The Original Space-Gard Aprilaire 2200 Reusable Plastic Cartridge / Frame As Shown in Picture to Use This Box Filter

Pad fits on Honeywell Bypass Flow-Through Humidifiers

Pre-Filters come with 1/4" removable tension springs

Lennox X8789 Furnace Filter 16x26x5 Healthy Climate MERV 16 for PC016-28 PureAir System Package of 1 19 1/2" x 19 1/2" x 3 3/4" 500 CFM Models for upLennox Healhty Climate Part # X8789 For Model PC016 28 16" x 26" x 5", Actual Size 16 3 8" x 25 1 2" x 4 3 8" This Filter is also Included in Maintenance Kit # X8796 Package of 1