The Nortec Humidity 2553708 Duct Distribution Kit is a replacement steam distributor designed for Nortec/Condair RH series residential humidifiers. The kit installs within HVAC ductwork and distributes steam evenly into the supply airstream, helping maintain consistent humidity throughout the conditioned space. It is suitable for use with furnaces, air handlers, and central HVAC syste... https://www.partshnc.com/2553708-nortec-humidity-kitduct-dist-rsd-10-rh-duct