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Aprilaire 4640 Humidifier Scale Control Insert 10-Pack

4640

Only $16.95 per Insert

You choose how often you want your filter, and we take care of the rest.

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Product Information

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The Aprilaire 4640 is the correct replacement for the following humidifiers:

Aprilaire 500
Aprilaire 500A
Aprilaire 500M

The Aprilaire 4640 Humidifier Scale Control Insert is for use in your 500 series model humidifier. This Aprilaire humidifier scale control is a U-shaped piece that encases your humidifiers water panel evaporator.

The Aprilaire 4640 Specifications:

Contains 1 humidifier scale control insert
Works with your 500 series model humidifier
Item Weight: 4.8 ounces

The Aprilaire humidifier scale control will direct mineral build up back into your humidifiers evaporative pad, keeping it out of your clean, humidified air. This humidifier scale control is a key feature to keeping your Aprilaire 500 series model humidifier working at peak performance.