I lived in Pillow, PA, town of 200 people. Amish country. The only hardware store in the area was Amish owned and run, they closed at 1130am on Saturday mornings and opened back up Morning. Simply not options available locally in many cases.
I was power washing a cement patio in the afternoon on my rare Saturday off. Melted the hose, and wanted to finish the job. Spent about four hours driving around that Saturday afternoon from Home Depot, Lowes, Northen Supply, etc.... to no avail. Everyone had replacement power was hoses on their shelf, but all were "standard" connections. The Troy built was a proprietary hose/ connection. Big lesson learned.
I have since purchased two power washers since the Troy built, and I make sure the hose/ connector is a industry standard power wash hose, and not a proprietary one.