I have 376B furnace, it is working well. The expert can tell me what size of filter should be. spec said 16x20x1, but I found the filter size is 12x20x1 inside furnace. Thanks. steven.chen@plantronics.com

Asked by steven on 01/04/2012 1  Answer

ManualsOnline posted an answer 12 years, 11 months ago

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