Eubank EAH1036A (C)
Bard WH303
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air28"8"28"14"27.88"7.88"27.88"13.88"42.063"38.2"74.563"70.563"19.188"17.125"2"2.123"17.875"17.93"32.688"28.75"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 Eubank EAH1036A (C) Bard WH303 Difference
Supply Air28" x 8"27.88" x 7.88"-0.12" x -0.12"
Return Air28" x 14"27.88" x 13.88"-0.12" x -0.12"
Distance from the top to Supply2"2.123"+0.123"
Distance between Supply and Return17.875"17.93"+0.055"
Mismatch Eubank EAH1036A (C) Bard WH303 Difference
Unit width42.063"38.2"-3.863"
Unit height74.563"70.563"-4"
Unit depth19.188"17.125"-2.063"
Unit weight397 lbs365 lbs-32 lbs
Distance from Return to bottom32.688"28.75"-3.938"