I purchased an 850 and the serial no. ID tag was missing. According to the Repair Parts Manual, there were 2 nozzles, the roller nozzle, which I can't afford, and a second type of nozzle, part no. 4711. I purchased an OPW 400 and the nozzle body and nozzle end are too long. The entire nozzle unit does not fit when hooked over the on/off handle. What nozzle brand and model number will properly fit an 850?
Joe