Probably a silly question, but given the price of hose clamps I thought I'd better ask before ordering.
I'm assuming hose clamp sizes reflect the outer diameter of the hose and not the inner diameter. That would mean a hose clamp listed with a range of 1.25 - 1.75 inches might not actually expand far enough for a thick walled hose with an inner diameter of 1.5 inches.
Therefore, when placing an order should you buy the clamp whose minimum diameter matches the inner diameter of the hose as a rule of thumb? Or do I have this all wrong?
Thanks,
AJ