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This Aprilaire 4232 Humidifier Orifice (Blue) is used in many Aprilaire humidifiers including the following Aprilaire humidifier models: Aprilaire 350 Humidifier, Aprilaire 360 Humidifier, Aprilaire 440 Humidifier, Aprilaire 700 Humidifier, Aprilaire 700A Humidifier, Aprilaire 700M Humidifier, Aprilaire 760 Humidifier, Aprilaire 760A Humidifier, and the Aprilaire 768 Humidifier.
The Aprilaire blue orifice is a tiny nylon component that accurately meters the flow of water into your humidifier. The Aprilaire 4232 Blue humidifer orifice replacement is designed to allow a specific amount of water to go in to the humidifier which is unique to your model humidifier - it is used only in the specific Aprilaire humidifiers listed above. Note that the Aprilaire 4231 Humidifier Orifice (Yellow) is for use with other Aprilaire humidifier models.
This is a genuine factory replacement Aprilaire 4232 replacement orifice also known as the Aprilaire 4232 blue orifice replacement and April Air 4232 blue orifice replacement.