3/4" oil and weatherproof reinforced double wall hose, the kind that lasts a decade with heavy use (at least, i have one that's 12 years old that i haven't had to repair at all). For the "better than contractor from TSC" it was $413 for 200', which is oil and weatherproofed double wall hose, but doesn't have the anti-collapse webbing between the layers, just the water carrying layer and the outer protective layer.

ETA iirc home depot has 75' for $30 for, uh, passable garden hose. I understand we can buy cheap stuff but even the cheap stuff is more expensive than it used to be.