This Waterman piston converter is a standard international size, and fits modern Waterman fountain pens that accept converters, as well as many other brands that accept standard international converters. Please note that Waterman converters tend to run longer than other standard international converters and may not fit all pens.
Really like this original piston converter. Works great and feels sturdy. The movement and action feels solid and everything works as expected. There is no feeling of lost suction when you rotate the piston and it sucks ink very well to fill up the container. Got it for my waterman ink pen.
....unlike the counterfeits one might find on other sites (amazon), anderson sells the real thing! works perfectly. thank you!
