Part #MAP-12
HUMIDIFIER FILTER FOR APRILAIRE/CHIPPEWA MODELS 224
14 3/4" X 11 1/4" X 1 1/2"
Replaces Part #12
Fits Aprilaire Model 136
Fits Aprilaire Model 112
Fits Aprilaire Model 440
Fits Aprilaire Model 445
Fits Aprilaire Model 448
Fits Chippewa Model 224
Fits Chippewa Model 225