24 in x 48 in x 4 7/8 in Actual Filter Size, 2,400 cfm Air Flow @ 300 fpm, HEPA Air Filter - 19RR65|19RR65 - Grainger
VEVOR HEPA Replacement Filter, 24''x24''x11.5'' AC Filter, True HEPA Pleated Air Filter, Air Filter Replacement with Galvanized Frame, 99.97% Standard Filter Compatible for HEPA Filter Novair 2000 | VEVOR US
36" x 24" x 6" HEPA FILTER REPLACEMENT | Earth's Tongue
0.3 Micron Clean Room HEPA Filters , 24 x 48 HEPA Filter With FM Approval