In this article, we take a closer look at the Fyizo FYZ-15-SW12 ANS2 Adjustable Pressure Switch, a universal replacement designed to simplify HVAC service work. We review its features, installation advantages, and why its 0.15"–2.0" WC range makes it one of the most versatile switches available today. Continue reading to learn how this model can replace multiple OEM pressure switches with a single, reliable solution.