The Rheem-Ruud RCHZ3617STANVU is a 3-ton evaporator coil designed for HVAC systems using R-410A refrigerant. With a 17.5-inch wide cabinet, it is installed in compatible split-system air conditioners and heat pumps, typically positioned in the indoor air handler or furnace plenum. The coil works by allowing warm indoor air to pass over its cold refrigerant-filled tubing, absorbing hea... https://www.partshnc.com/rheem-ruud-rchz3617stanvu-3-ton-evaporator-coil-r410a-17-5-w