16x25x.38 Honeywell Prefilter for Honeywell F50 models

16 x 25 x 3/8 Honeywell 203371 Prefilter Nominal size 16 x 25 x 3/8. Actual size 15 3/4 x 24 3/4 x 3/8. Use one 16 x 25 to replace two 16 x 12.5 filters! Capture large particles to extend the life of your main filter. AirFilters.com This Honeywell Electronic Prefilter captures large particles to extend the life of your main filter. You can use one of these 16 x 25 prefilters to replace TWO 16 x 12.5 prefilters! The actual dimensions are 15 3/4"" x 24 3/4"" x 3/8"". Purchase one for your Honeywell models F50A, F50E, or F50F today!