Notes:

1- These are 'Nominal' sizes. The actual filter frame size will follow industry standard and be 3/8' undercut, i.e. a 12 x 20 will measure 11 5/8' x 19 5/8'. The width of the frames are 7/16', 7/8', and 1 ¾' for x ½, x 1, and 2 filters, respectively. Flexible frames are approximately 3/8" thick at the edges and 5/8"' thick at the center.

2- Custom sizes are also available, please specify the EXACT dimension that you want the FILTER FRAME to ACTUALLY measure. Air-Care will NOT calculate the undercut.

3- Flexible framed filters conform to the same specifications as the rigid aluminum framed filters, but have sewn Polypropylene webbing frame.