The Kenmore EF-1 filter is approximately 4 x 6 inches.
Kenmore 53295 and 86889 HEPA media exhaust filter for upright and canister Whispertone, Intuition and Progressive vacuum cleaners.
Replacement for the following Kenmore vacuum filters :
86889 filter (2086889, 20-86999) filter
53295 (20-53295, 2053295) filter
Filter part 40324 and KC38KCEN1000
Ultra Care EF-1 exhaust vacuum filter
Sears item 02080007000 and 02053295000.
Universal Sears Kenmore 20-86889 EF-1 HEPA exahust vacuum cleaner filter replacement.
The Kenmore Intuition model 31040 is an example of an upright vac that uses the EF-1 filter.