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audible leaking through the exhaust port
This critical combustion component serves as the collector box
engineered for tight-clearance cabinet installations where a standard straight boot would risk arcing or physical interference with the burner manifold
It utilizes the industry-standard MKC-2 coil (sold separately) and features a manual lift stem for system troubleshooting and manual override
utilize existing mounting brackets or standard sheet metal screws for installation
Watts 0121558 Valve 320788-703 audible leaking through the exhaustThe Watts 0121558 (Series LF174A) is a high capacity 2 inch boiler pressure relief valve designed specifically for large scale commercial hot water heating and domestic supply systems. Engineered with a lead free copper silicon alloy body, this valve is rated for a 75 PSI set point and provides an exceptional discharge capacity of 7,770,000 BTU hr. Its construction features NPT female threaded connections for both the inlet and outlet, ensuring a
US$ 118.55
US$ 999.50
US$ 143.00
US$ 35.99
US$ 20.20
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