Description
The Xylem-McDonnell & Miller 312200 21-27 Gasket 5-Pack is a sealing component to prevent leakage between connected surfaces in hydronic and boiler systems. It operates by forming a tight seal when compressed between mating parts, supporting containing water or steam. Within HVAC systems such as boilers and liquid level control assemblies, these are placed at connection points to maintain proper sealing during operation. This component supports leak prevention, keeps a system’s integrity, and ensures stable operation by preserving pressure and fluid containment at essential joints.
