The Aprilaire 10 is the correct replacement water panel evaporator for the following humidifier models:
The Aprilaire 10 - Aprilaire 500 Water Panel Filter fits the Aprilaire 500 Humidifier, Aprilaire 550 Humidifier, and Aprilaire 550A Humidifier as well as the Aprilaire 110 Humidifier and Aprilaire 220 Humidifier. The Aprilaire 10 water panel is the key component which works to generate the humidity in your Aprilaire humidifier system.
This Aprilaire 500 water panel has a filter life of about 6 months - the dimensions of this Aprilaire humidifier filter are approximately 9 3/4 inches x 10 inches x 1 3/4 inches. This is a genuine factory replacement Aprilaire 500 water panel evaporator humidifier filter also known as the Aprilaire 10 water panel evaporator filter and April Air 10 water panel evaporator filter.
The Aprilaire 10 specifications: