Bard WL181
Bard WA4842
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air19.88"7.88"19.88"11.88"19.88"7.88"19.88"11.88"33.3"42"70.563"84.875"17.125"22.25"2.183"2.365"20.56"20.5"28.06"42.25"Supply AirReturn AirSupply AirReturn Air
OPENING MATCH

Your openings match up but double check the cabinet surroundings. Over time equipment coils have gotten larger for better efficiency and cabinet dimensions have changed.

Match Bard WL181 Bard WA4842 Difference
Supply Air19.88" x 7.88"19.88" x 7.88"0"
Return Air19.88" x 11.88"19.88" x 11.88"0"
Distance from the top to Supply2.183"2.365"+0.182"
Distance between Supply and Return20.56"20.5"-0.06"
Mismatch Bard WL181 Bard WA4842 Difference
Unit width33.3"42"+8.7"
Unit height70.563"84.875"+14.312"
Unit depth17.125"22.25"+5.125"
Unit weight300 lbs500 lbs+200 lbs
Distance from Return to bottom28.06"42.25"+14.19"