This listing is for a box of TWELVE (12):
RGF Environmental MAP800 FILTER: PREFILTER / CFM: 800 PF-082
Fits Microcon MAP 800 HEPA Filtration Cabinet High Capacity Mobile Air Scrubber
Inspect Pre-filter regularly for dust build-up. Replace Pre-filter 1 to 3 months or if color change from Blue to Grey is noted.
18 1/2" x 18"
Box #42876