Does anyone have vacutech thickwall cylinder without vacutech sign on it?

[good_shape]

Mine it have only the size of cylinder on it.

 

[Torque8]

All 4 of my cylinders are so old ( 7 to 10 years old) that there are no markings at all.

 

[good_shape]

Thank u man.Can u help me with pumping?

 

[lakecreeker]

all of ours are so old or well used that I think the markings/stickers came off a long time ago