Honeywell 50000293-004, High Efficiency Post-Filters; 12.5" x 19.75" x 3/8"

Make Honeywell's best electronic air cleaners even better with this high efficiency post filter # 50000293-004.

Improves the efficiency of 20" x 25" Honeywell F50F and F300 electronic air cleaners.

Boosts efficiency by 8 - 10%!

Lasts up to six months. Contains an antimicrobial coating to protect against the growth of bacteria and fungus on the filter.

Note: Honeywell has upgraded the media on these post-filters, and is now white in color.

Sold two to a pack.

Recommended Replacement: Every six months

Note: Electrostatic charge will be lost if washed.

This postfilter will NOT fit the F50A or F50E series.