Best 727 and 747 GeneralAire Humidifier Evaporator Sleeve Replacement Filter

Building and Test Flying The Boeing 727 & 747: 0985365121648 Building and Test Flying The Boeing 727 & 747 on Amazon. *FREE* super saver shipping on qualifying offers. Write a customer review

This humidifier filter (evaporator sleeves) fits GeneralAire power humidifier (drum type) model 727, 747 and removes all minerals from the water it evaporates! Minerals are left on the evaporator sleeve and are not blown into the airstream to collect in the living area. It measures approximately 9 H x 5 3/4 ID x 7 1/4 OD x 3/4. For optimum performance, replace filter every two months or, in hard water areas, more frequently if necessary.