Seller did not state but they look like 5/8th. The fitting closer to the bottom looks alittle bigger though, might just be my bad depth perception. But all the brand new ones i looked up all have 5/8th in and out. (And cost around 58-70 dollars)
Oh, like one of those 12v blowers? (Or probly something alot smaller lol as 500-600cfm would be alittle overkill)
Damn thats a good idea, thanks man.
Keep 'em comming guys.
Btw its from a '72 140 series.