How old is Polaris 380?
How old is Polaris 380? The older cleaner models have the serial numbers stamped/molded onto them. The newer Polaris cleaner models have the serial number stamped on a sticker on the back of the cleaner. If the serial number starts with a “K” it will be a 380, if it starts with “C” it will be a 280, if it starts with a “L” it will be a 360.