Enhance your writing experience with our Slim Ink Cartridges specially designed for slim American Pen Company fountain pens. Whether you’re journaling, signing documents, or taking quick notes, these high-quality cartridges offer vibrant color, smooth ink flow, and dependable performance—no matter where inspiration strikes.
The Convenient Choice for Fountain Pen Enthusiasts
One of the most practical ways to get the most out of your favorite American Pen Company fountain pen is by using pre-filled ink cartridges. Our premium cartridges are not only mess-free but also incredibly easy to carry, allowing you to keep a few spares with you at all times. You’ll never have to worry about running out of ink unexpectedly or dealing with the hassle of bottled refills.
Designed for Everyday Writing
Crafted in the EU with precision and care, each cartridge contains high-quality ink that delivers a consistently smooth and skip-free writing experience from start to finish. The medium ink flow allows for excellent control while writing on all types of paper, from notebooks to high-end stationery.
A Burst of Color with Every Word
Choose from seven rich, expressive colors to suit your personal style or writing mood:
🖤 Black – Timeless and bold
💙 Blue – Clean and professional
💚 Green – Fresh and creative
💗 Pink – Fun and expressive
💜 Purple – Elegant and unique
❤️ Red – Attention-grabbing and strong
🔵 Royal Blue – Classic with a touch of flair
Whether you’re color-coding notes or simply expressing your personality, there’s a shade for every occasion.
Practical for Travel, Work, and Home Use
Thanks to their compact and lightweight design, these cartridges are perfect for daily use and travel. Slip a few into your pen case, bag, or pocket without worry. The durable plastic casing ensures they remain leak-proof, while also preventing ink evaporation and degradation over time.
Instant Performance – No Clogs, No Mess
From the moment you insert a new cartridge, your pen is ready to go. These premium cartridges are formulated to avoid common issues like ink clogging or skipping. Even after extended periods of non-use, your American Pen Company pen will still write cleanly and consistently, allowing you to focus on your thoughts—not your tools.
Quick-Drying, Bleed-Free Ink
Perfect for note-taking, letter writing, or quick signatures, the ink dries quickly upon contact with paper, minimizing smudges and preventing bleed-through. This makes them ideal for both personal and professional settings.
Compatibility & Sizing
Our ink cartridges are designed for slim American Pen Company fountain pens and are compatible with most models using standard slim cartridges. Each cartridge measures:
- Length: 52mm (2.05 inches)
- Diameter: 7mm (0.28 inches)
Available in convenient packs of 10 or 20 cartridges, so you can stock up with ease.
Upgrade your American Pen Company fountain pen with vibrant, dependable ink cartridges that combine style, quality, and practicality — wherever you write, write with confidence.
Specifics
| Condition | New |
| Brand | OnPens |
| Model | Slim Ink Cartridges For Slim American Pen Company Fountain Pens |
| Category | Ink Cartridges |
| Type | Slim Cartridges |
| Color | Black, Blue, Green, Pink, Purple, Red, and Royal Blue |
| Compatibility | Most Slim American Pen Company Fountain Pens |
| Fast Drying | No |
| Fluorescent | No |
| Shimmer | No |
| Freeze Resistant | No |
| Iron Gall | No |
| Lubricated | No |
| Pigmented | No |
| Scented | No |
| Water Resistant | No |
| Box Included | No |
| Diameter | 7mm (0.28in) |
| Length | 52mm (2.05in) |
| Weight | 1.3g (0.05oz) |
| Packs | 10 or 20 ink cartridges |
