Piston Filling Demonstrator Pens

Sketch Piston Filler Demonstrator

Piston filler demonstrators are attractive clear pens that let you fill and empty using a piston device. This keeps your hands clean and lets you switch inks quickly and keep an eye on your remaining ink. They get their name "demonstrator" because they demonstrate the inner workings of a fountain pen.

  • Provides a large ink capacity
  • Use any ink or paint
  • Crystal clear, keep your eye on the remaining volume
  • Piston filling mechanism
  • Measures 5.25" uncapped, 5.5" capped

This model . . .

  • Contains our Sketch nib and matching feed
  • Lets you replace the nib easily - slide out the old and insert the new
  • Uses nibs of a similar size an shape, such as the Brause Rose and Zebra Manga G, also most Osmiroid nibs and some Hunt nibs

These pens use the same feeds we provide in our Fountain Pens and Pump Pens, which are designed for the Zebra Manga G, Brause Rose and our Sketch nibs. 

View other piston filler demonstrators

Select your feed 

  • Fine works with thinner inks, designed for continuously fine work, ideal if all you want to do is write
  • Standard works with most inks and paints
  • Rich works with India inks and acrylic paints for fountain pens, such as Golden Hi-Flow
  • Full works with thicker calligraphy inks and paints, and provides a strong flow for all liquids

By default we ship the Standard feed, which works with most inks and paints. If you find this feed does not suit your needs, you can exchange it for another feed. 

You can order other feeds listed above, including a three pack of the most popular feeds - fine, standard and rich. 

Other nibs you can use

What you get in this package

  • One Clear Demonstrator Piston Filler Fountain Pen
  • Two Sketch nibs with your choice of feed
    • Sketch nib version 1 to practice smoothing
    • Sketch nib version 2 for drawing
  • Instructions for polishing your Sketch nibs
  • User instructions

For more info . . .


Smoothing your Sketch nib