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Specifically compatible with a wide array of Weil McLain boiler models
Forged brass construction with nickel plating offers superior corrosion resistance compared to standard valve bodies
Compatible with AM11-2025 media air cleaner cabinets for a tool-free installation
Disconnect the probe from the control board and use a multimeter to check the resistance (ohms)
Enhanced Component Protection: The integrated spanner wrench features prongs designed to align perfectly with collar recesses
McDonnell & Miller 250-3/4-30 Valve 30067439-890 Specifically compatible with a wideThe McDonnell & Miller 250 3 4 30 (Part Number 181225) is a high capacity 3 4" NPT pressure relief valve engineered specifically for hydronic heating systems and storage tanks. Rated for a set pressure of 30 PSI and a substantial 790,000 BTU capacity, this valve provides critical over pressure protection by utilizing a fail safe spring loaded mechanism. Its heavy duty bronze body and seat, paired with an EPDM rubber diaphragm, ensure resilient
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