The Sporlan Controls 183620 Bottom Gasket Bushing is a sealing component designed to provide a secure fit within compatible HVAC and refrigeration control assemblies. It works by forming a seal between mating components, helping prevent leakage and supporting reliable equipment operation. This bushing is used in compatible Sporlan refrigeration valves and related HVAC systems, dependi... https://www.partshnc.com/sporlan-controls-183620-gasket-bottom-bushing-123-002