ACA-1030 Duracraft Air Purifier Filters (Aftermarket) Fits Duracraft models DA-1000C and DA-1030&#44; as well as Kenmore models 831132&#44; 83132&#44; 831320&#44; Aftermarket replacement filter. Measures approximately 6 3&#47;8 x 7 1&#47;4 x 8 in. For optimum performance&#44; replace filter every 2 to 3 months.