Pentel EnerGel Refill Guide: XLRN3, XLRN4, XLRN5, XLR7 & XLR10

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Japan / Everyday Japan / Stationery Compatibility Lab
Pentel EnerGel Refill Guide: XLRN3, XLRN4, XLRN5, XLR7 & XLR10
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Hi, I'm Yuu! 🌷 I write BeeLife from Japan.
EnerGel codes look a little cryptic at first, but they're actually great once you know the number tracks the tip size.
Contents
EnerGel's refill code tells you more than the package color: tip size + tip style matter.
Pentel's current EnerGel lineup uses XLRN3 / 4 / 5 for 0.3–0.5mm needle tips and XLR7 / XLR10 for 0.7–1.0mm bullet tips.
The EnerGel code pattern
0.3mm = XLRN3, 0.4mm = XLRN4, 0.5mm = XLRN5, 0.7mm = XLR7 and 1.0mm = XLR10 in Pentel's current standard EnerGel refill range.
0.3–0.5needle tip
XLRN family.
0.7–1.0bullet tip
XLR family.
¥99Japan MSRP
Pentel currently lists the standard refills at ¥99 including tax.
| Tip | Refill family | Tip style |
|---|---|---|
| 0.3mm | XLRN3 | Needle |
| 0.4mm | XLRN4 | Needle |
| 0.5mm | XLRN5 | Needle |
| 0.7mm | XLR7 | Bullet |
| 1.0mm | XLR10 | Bullet |
Pentel also sells multiple ink colors in several of these sizes, so the final code includes a color suffix.
Yuu's note ✍️
I would pick the writing width first, then the ink color. Buying “blue EnerGel refill” before choosing 0.3/0.5/0.7 is backwards.
I would pick the writing width first, then the ink color. Buying “blue EnerGel refill” before choosing 0.3/0.5/0.7 is backwards.
Official sources
Bottom line
EnerGel is simple once you read the numeric family: choose tip diameter, then color.


