Honeywell Commercial Prefilter
Our prefilter is a Honeywell commercial grade prefilter. The commercial prefilter has more layers of expanded aluminum, starting with a noticeably heavier gauge, course grid. The commercial prefilter weighs 33% more, you can not see clear through this prefilter like the residential version.
The commercial prefilter has an exclusive vinyl bonding process so the frame securely grips the mesh. Also the corners of the frame overlap adding more strength. The flimsy residential prefilter twists and flops when handled, the commercial version is ridged.
We purchase these prefilters from the Honeywell Commercial Air Products division. These prefilters are made in Madison Wisconsin. Honeywell residential prefilters are stamped Product of Mexico.