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Jan 19, 2017 - 08:08 AM
Marshall Excelsior MEGR-253 Two Stage Automatic Changeover Regulator primary cylinder does 225.00 BTU/Hr and reserve cylinder is 150.00 BTU/Hr as for the MEGR-253L primary does 175,000 BTU/Hr and Reserve at 100,000 BTU/Hr. The MEGR-253L is a low flow version of the MEGR-253.
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