P/N 1200-04, 20" x 25" x 4", Main Filter for MA1200 Mistaway Mist Collector. Merv 14 Rated.
Will NOT fit MA1200C Mistaway Unit.
NOTE: This filter is discontinued. Please order #1200B-C to convert your unit to use #1200-04A filter.
For additional info and instructions see "Download files" link.