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It serves as a direct replacement for the HH18HA499A model
Durability: Heavy-wall construction handles high-pressure water inlets (20-90 PSI) without deformation or fatigue
While technical dimensions may appear similar
Smith residential water heater models
"drop-in" fit during service calls
McDonnell & Miller 312200 Gasket It serves as a directMaintaining the integrity of boiler water feeders and liquid level controls requires high performance sealing components designed for steam and hydronic environments. The McDonnell & Miller 312200 Gasket is a critical replacement valve bracket gasket engineered specifically for Series 21, Series 25A, and Series 27 units, including the 27W model. As the direct updated version for 311100, this part ensures a precision fit for mechanical water feeder
