Manufacturer Name: iO HVAC Controls Product Number: UT-SWM OEM Part Number: UT-SWM The UT-SWM Universal 2-5 Wire Adapter from IO HVAC Controls is a flexible solution that makes HVAC system compatibility and installation easier. This adapter bridges the gap between devices with two-wire and five-wire setups, making it easier to integrate HVAC equipment that requires different wiri... https://www.partshnc.com/ut-swm-io-hvac-controls-universal-2-to-5-wire-adapter