Robinair Filter Serial Number -

The secret wasn't the pump. It was the filter.

The first challenge for many technicians, especially those new to a specific unit, is simply finding the number. The serial number is rarely on the filter itself in the way a barcode sits on a grocery item. Instead, it is typically found in one of two places depending on the vintage and model of the Robinair unit (such as the popular 34788 or 34134 series). robinair filter serial number