Package of two commercial grade 203368 prefilters for F300 or F50F. We measured each prefilter at 12½ x 16 x 5/16. Two of these prefilters are used in the Honeywell 16 x 25 F50F or F300 air cleaners.
These prefilters are a genuine product of the Honeywell Commercial Air Products Division. Commercial products have higher standards for design, assembly, procurement, and production.
Prefilter Upgrade Fits
Permatron polypropylene filters tests shows 43% increase in average arrestance efficiency over metal mesh prefilter. See Poly-203368
the F300E1019, F300A1625 and F50F1073 air cleaner.
This 203368 prefilter is for the F300E F300A F50F and will NOT fit
the the F50A or F50E Series. Read below for more info.