McDonnell & Miller 250-3/4-15 Valve 30067439-890 Flexible Geometry: The 36" length

Flexible Geometry: The 36" length combined with a 90-degree angled fitting simplifies connections to pressure switches and manifold ports in cramped cabinets

As a standard in HVAC mechanical linkage parts

The Armstrong Furnace R44992-001 Sensor Ignitor is a critical OEM replacement component designed for high-efficiency gas furnaces

Frequent tripping usually indicates restricted return air

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McDonnell & Miller 250-3/4-15 Valve 30067439-890 Flexible Geometry: The 36" lengthThe McDonnell & Miller 250 3 4 15 is a high performance 3 4" NPT Pressure Relief Valve engineered for critical over pressure protection in hydronic heating systems and storage tanks. Featuring a robust bronze body and seat, this valve is factory set at 15 PSI with a substantial thermal discharge capacity of 515,000 BTU hr. Designed to meet ASME Section IV code requirements for heating boilers, it utilizes an EPDM rubber diaphragm and seat disc to