Fountain Pen Ink Cartridges

Here you will see every fountain pen ink cartridge we carry. Make your choice carefully or if you'd like a 'hand', give us a call at 800.766.7367 or send you question to  

If do not have a used cartridge for reference, look for your brand of pen in the list of cartridges. If you cannot locate your brand, many fountain pens have been designed to fit the international-sized ink cartridges. They are 1-1/2" long and fit in most barrels. They also have a uniform "neck" which fits in many fountain pens. We carry numerous brands, all of which contain the water-based liquid ink commonly used in fountain pens. Colors abound in either the Colorado Pen or Pelikan brand.  

If your pen fits an international-sized ink cartridge, the barrel may be long enough to accommodate a large international-sized cartridge. The rule of thumb is if you can fit two unopened 1-1/2" cartridges in the pen's barrel, the barrel is big enough to hold a larger cartridge. This allows for a longer time between cartridge replacement. Again, both Colorado Pen and Pelikan offer this larger sized international cartridge.  

Certain ink cartridges will only fit in that brand's fountain pens. Sheaffer, Pilot, Lamy and Cross are good examples. Cross offers two sizes, one for very SLIM fountain pens like the Century Classic, and a standard size for their larger diameter fountain pens. Ink cartridges from Aurora and Parker slim down at the closed end to fit nicely in all their barrels.  

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Aurora Ink Cartridge Item #: F0302
$6.50 more details »

Colorado Pen Giant Size Ink Cartridge Item #: F0630
$6.00 more details »

Colorado Pen International Standard Ink Cartridge Item #: F0604
$3.50 more details »

Cross Ink Cartridge 6 Pack Item #: F0812
$7.00 more details »

Cross Slim Ink Cartridge Item #: F0814
$7.00 more details »

Lamy T10 Ink Cartridge Item #: F2108
$4.50 more details »

Montegrappa Ink Cartridges Item #: F5801
$11.00 more details »

Parker Ink Cartridge Item #: F4104
$6.00 more details »

Pelikan Ink Cartridges Large Item #: F5430
$7.00 more details »

Pelikan International Ink Cartridges Item #: F5404
$3.50 more details »

Pilot Ink Cartridge Item #: F3007
$6.00 more details »

Sheaffer Ink Cartridges Item #: F3701
$6.00 more details »

Waterman Ink Cartridges Item #: F3115
$8.00 more details »

Waterman International Standard Ink Cartridge Item #: F3116
$5.50 more details »