Lennox X8309 MERV 11 Expandable Replacement Air Filter For Lennox HCC16-28 Dimensions: 16" X 25" x 5" (Actual Assembled Frame 15-3/4" X 24-3/4" X 4-7/16")

These Are Expandable Filters And DO NOT Come With A Frame.

You Must Reuse The Existing Frame Or Purchase A Filter With A Frame HCFX16-10, HCFX16-11