Bard WL421
Bard W30L2
Unit depthUnit depthSupply AirReturn AirSupply AirReturn Air29.88"9.88"29.88"15.88"27.88"7.88"27.88"13.88"42.075"38.2"84.875"70.563"22.432"17.125"2.175"2.123"30"17.93"26.94"28.75"Supply AirReturn AirSupply AirReturn Air
MISMATCH

These units don’t appear to have much in common. If you’re replacing one with the other, you’ll need to make some modifications to wall, unit or something in between with a plate or adapter curb.

Match Bard WL421 Bard W30L2 Difference
Distance from the top to Supply2.175"2.123"-0.052"
Mismatch Bard WL421 Bard W30L2 Difference
Unit width42.075"38.2"-3.875"
Unit height84.875"70.563"-14.312"
Unit depth22.432"17.125"-5.307"
Unit weight500 lbs360 lbs-140 lbs
Supply Air29.88" x 9.88"27.88" x 7.88"-2" x -2"
Return Air29.88" x 15.88"27.88" x 13.88"-2" x -2"
Distance between Supply and Return30"17.93"-12.07"
Distance from Return to bottom26.94"28.75"+1.81"