- Refill your Waterman fountain pens quickly and easily with the Waterman fountain pen ink cartridges.
*Filled with soft, bright Serenity Blue ink, you're equipped to make a bold and vibrant impression.
*The ink is also washable, so you can easily clean it.
*The long ink cartridges fit easily into your fountain pen and provide a long-lasting supply of ink.
*The ink cartridge fits all Waterman fountain pens.