RESEARCH PRODUCTS Orifice (Yellow)

Product Description

Orifice (Yellow)|Fits for Aprilaire humidifier 400, 500, 550, 550A, 558, 560, 560A, 568 and 600.|Replacement Humidifier Parts Yellow Orifice 4231 can accurately measure the flow of water entering the humidifier, which keeps the water panel clean and reduces maintenance to a minimum.|4231 Replacement Humidifier Yellow Orifice is a tiny nylon component made of high-quality materials that is built to last.