Back Cover Compatible Power Box
The F820-0220 power box cover fits earlier Electro-Air power boxes. Now renamed ComfortPlus, the new SST and the replacement SST power box has been redesigned with the 3-prong plug now in the back cover. The new ComfortPlus power box is interchangeable with the Electro-Air version. Both new and old shown below.
The power box was changed to accommodate a new clinch riveting process that replaces the old spot weld process.
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