If you’re a fountain pen enthusiast who enjoys using bottled ink with your LAMY pens, understanding the differences between their proprietary converters is essential. LAMY currently offers two main converter models: the Z-27 (black knob) and the Z-28 (red knob). While they may appear similar at first glance, there are important distinctions that determine which pens they’re compatible with.
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The Key Differences: Z-27 vs Z-28
The most obvious visual difference between these converters is the color of their piston knobs – the Z-27 features a black knob, while the Z-28 has a red one. However, the crucial functional difference lies in their design:
- LAMY Z-27 (Black Knob): Features a smooth exterior and is universally compatible with all LAMY fountain pens (except the LAMY 2000, which uses a different filling system entirely).
- LAMY Z-28 (Red Knob): Includes two small pegs or posts on its sides that fit into corresponding grooves in certain LAMY pen models, particularly the more entry-level ones. This design provides additional security for the converter in these models.
The presence of these pegs on the Z-28 means it won’t fit into LAMY models that don’t have the corresponding grooves to accommodate them. However, any pen that accepts the Z-28 will also accept the Z-27, making the Z-27 the more versatile choice if you’re unsure which converter to select.
Historical Context: Previous Generations
Before 2016, these converters were known by different model numbers:
- The current Z-27 was previously called the Z-26
- The current Z-28 was previously called the Z-24
The 2016 redesign brought several changes:
- For the Z-28 (formerly Z-24):
- The pressure band changed from black to matte silver
- The plastic body became clearer (less cloudy)
- The red knob changed from shiny to matte for better grip
- The opening was stepped down slightly on the exterior (though internal diameter remains the same)
- For the Z-27 (formerly Z-26):
- Changes were minimal and primarily aesthetic
- Both the pressure band and knob changed from a shiny finish to matte
Functionally, the current models work identically to their predecessors, and both old and new versions remain compatible with the same pens.
Compatibility Table: Which Converter Fits Your LAMY Pen?
| Pen Model | Z-27 | Z-28 | Notes |
|---|---|---|---|
| Safari | ✅ | ✅ | Typically uses Z-28 |
| AL-Star | ✅ | ✅ | Typically uses Z-28 |
| Vista | ✅ | ✅ | Typically uses Z-28 |
| Joy | ✅ | ✅ | Entry-level model |
| ABC | ✅ | ✅ | Entry-level model |
| Nexx | ✅ | ✅ | Entry-level model |
| Studio | ✅ | ❌ | No Z-28 grooves |
| Aion | ✅ | ❌ | Higher-end model |
| CP1 | ✅ | ❌ | Higher-end model |
| Logo | ✅ | ❌ | Higher-end model |
| Accent | ✅ | ❌ | Higher-end model |
| Scala | ✅ | ❌ | Higher-end model |
| Linea | ✅ | ❌ | Higher-end model |
| 2000 | ❌ | ❌ | Different system |
Which Converter Should You Choose?
For simplicity’s sake, the Z-27 is the safest choice as it works with all LAMY pens (except the LAMY 2000). If you primarily use entry-level models like the Safari, AL-Star, or Vista, either converter will work fine, though LAMY typically pairs these models with the Z-28.
The Z-28 converter, with its additional pegs, provides a more secure fit in the pens designed to accept it. However, these same pegs prevent it from fitting into higher-end LAMY models that don’t have the corresponding grooves.
Durability and Replacement
LAMY converters are known for their durability and longevity. With proper care, they can last for many years of regular use. When maintained well, you likely won’t need to replace your converter often, making them a worthwhile investment for your fountain pen collection.
Conclusion
Understanding the subtle differences between the Z-27 and Z-28 converters helps ensure you select the right one for your LAMY fountain pens. While the Z-27 offers universal compatibility across the LAMY line (excepting the LAMY 2000), the Z-28 provides additional security for specific models designed to accommodate its pegged design.
When in doubt, remember this simple rule: the Z-27 (black knob) fits all standard LAMY pens, while the Z-28 (red knob) only fits specific models with corresponding internal grooves.
Happy writing!