Aprilaire Humidifier Part # 45 for Models 400, 400A and 400M Case of 2

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Feature

This Humidifier Pad has to be inserted into the resuable plastic frame
Manufacturer Recommends changing pad after every heating season.
Manufactured In North America
Case of 2

Description

Aprilaire Humidifier Part # 45 for Models 400, 400A and 400M Case of 2