A favor from my fellow pumpers

Can anyone measure and report the ID of your 1.75” pumps, if possible post pics of this also.

TIA

Dirk: The inside diameter of the tube is 1-5/8”. The pump is another matter; but I know what you meant. Steve

The inside diameter of my 2” cylinder is 2”. Perhaps I’m missing something , but isn’t inside diameter what is being referred to when cylinder size is being mentioned? A cylinder that has an inside diameter of 1 5/8” is a 1 5/8” tube, right?

I’ve also got a cylinder labeled 3 1/2”; it’s inside diameter is 3 1/2”.

Dirk: do you have a 1.75” cylinder whose inside diameter is NOT 1.75”?

(Who is buried in Grant’s Tomb?
Http://en.wikipedia.org/wiki/Grant’s_Tomb)

— Lampwick

The ID’s or inside diameters of my cylinders measure as they’re indicated. The outside diameters measure larger because of the thickness of the cylinder walls.