Older model 580.752870 seems all the rubber seals in the hose went bad, better off buying news hose
or trying to find the correct seals...Finding the seals seem to be hit or miss
thanks
Lip seals or O-rings?
Lip seal ought to have a number on them. You can measure O-rings to order by size.
Seals and O-rings are cheap when ordered through an industrial supply house. Not so much once Sears or other tool manufacturers apply their own part number to a common item.