no. 709 Humidifier Filter High Output

No. 709: Aprilaire fits model No. 110, 220, 550, 550A, and 558, Chippewa model No. 220, Honeywell model No. HE220A, 220B 225A, and 225B, Lasko model No. 5000L, 5000EC, 6000. Hamilton model No. 12HF