71" wc and 1

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Weil McLain 560-528-987 Orifice 30067439-890 71" wc and 1The Weil McLain 560 528 987 is a precision engineered natural gas main burner orifice designed specifically for EGH and CGi series boilers. This critical component features a 7 16 hex head for straightforward installation and a precisely machined 2. 45mm orifice size (equivalent to a custom drill size for specific BTU outputs). In the field, ensuring the correct manifold pressure and gas flow is non negotiable for combustion safety; these orifices