Check the listing for details. Nu-Calgon 4720-06 pH-Treat Neutralizer Disposable Kit. Condition: New. Listed at 70.88 USD. 100% New OEM Parts Fast Shipping WELCOME TO OUR EBAY STORE climatedoctors Nu-Calgon 4720-06 pH-Treat Neutralizer Disposable Kit Nu-Calgon 4720-06 pH-Treat Neutralizer Disposable Kit ---Includes fitting kit for easy installation ---Service life: 1 year or when out flow pH level moves below 6 ---Temperature range: 40 to 100 degrees F (4. 4-37. 8 C) ---0-125 psi pressure range pH-treat is an in-line treatment product for the treatment of the condensate water produced by today's high efficiency furnaces. The condensate produced by these furnaces is acidic and must be neutralized prior to putting to the drain. In fact, some communities are passing regulations banning the discharge of acidic condensate. Introducing pH-Treat, a product to put on the drain line for the purpose of neutralizing the acid nature of the condensate water produced.