The Lennox- Y3481 Steam Cylinder Assembly is a replacement plumbing steam cylinder designed for use with compatible Lennox Healthy Climate steam humidification systems. This component supports 110-volt operation and is rated for systems with a 15 gallons-per-day (GPD) output capacity when installed in approved configurations. This assembly functions as a steam generation canister within compatible humidifier systems and is intended for replacement or maintenance purposes only. The unit is supplied as a steam cylinder assembly and is designed to match original equipment specifications for supported Lennox models.