Media replacement cartridge fits Aprilaire and Space-Guard furnace model numbers 2200, 2250.

For furnaces with filter cavities approximately sized 20 inches x 25 inches x 6 inches.

Actual measurements of filters: 19.75 inches by 24.5 inches by 6.375 inches.

Filter may be smaller than cavity to account for installation differences, but the size will not reduce the filter's effectiveness.

MERV 8 rating.

Comes as a 2-pack of filters.

Replaces original Space-Gard part number 201.

Flanders PrecisionAire part number 600SG.

This is an entire filter media replacement cartridge in cardboard frame that replaces the accordian-style expandable replacement filter and filter frame assembly.

Original part number; 600SG, 600-SG, 82655.062025.