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Ships within 48 hours · Estimated delivery Sep 15 - Sep 20
Crafted from durable materials
this 120V HSI replacement offers superior thermal and physical strength
rated for 190°F ambient at the switch and up to 350°F at the element
Common Questions & Technical Insights Is the 313900 gasket compatible with the older 312800 part number
supports up to 12 cycles per day for optimized energy management
McDonnell & Miller 349500 Hook-Up 30067439-890 Crafted from durable materialsThe McDonnell & Miller 349500, also identified by model number SA159 24, is a specialized lower quick hook up fitting engineered for seamless integration with steam boiler safety controls. This critical component serves as a direct replacement part for the McDonnell & Miller Series 47 and 47 2 mechanical water feeders, as well as the Model 64 A, 42A, 67, and 42S A low water cut offs. Designed for professional installation, it enables a reliable