Nahvalur Original Plus Review: A Real Vacuum Filler for $55

Nahvalur Original Plus Review: A Real Vacuum Filler for $55

Vacuum-filling pens, the ones with a plunger you pull and punch to draw a barrel full of ink in one satisfying gulp, used to start around a hundred dollars and climb fast. The Nahvalur Original Plus broke that floor. For about $55 it hands you a genuine vacuum filler in a swirling demonstrator body with an in-house-tuned steel nib, and it does it without feeling like a corner was cut to reach the price. For anyone curious about the most theatrical filling system in the hobby, this is the cheapest honest way in.

We weigh a pen like this on how it writes, the filling system it is built around, the upkeep it asks for, and whether the price is fair. The filling system is the headline here, so it gets the most ink, literally and figuratively.

A note on the name

If the brand looks unfamiliar, you may know it by its old one: Nahvalur launched as Narwhal and rebranded a couple of years in, keeping the ocean theme and the same pens. The "Original Plus" is the refined version of that first model, with a bumped ink capacity and revised internals. Same lineage, same sea-creature colourways, new label, worth knowing if you are reading older reviews.

How the vacuum fill actually works

This is the whole reason to buy the pen, so it is worth understanding. Unscrew the blind cap at the tail and a metal rod extends from the barrel. Dip the nib fully into a bottle, then push the plunger down in one firm stroke: as the seal passes the narrow point of the barrel it releases, and the sudden negative pressure sucks ink up in a single dramatic rush. Screw the blind cap back down and you are inked. There are no cartridges and no converter, the barrel itself is the reservoir, holding around 1.5ml, comfortably more than a converter and enough for long stretches between fills. It is genuinely fun, and the clear body means you watch the whole thing happen. If the wider world of filling systems is new, our how to fill a fountain pen guide and the cartridge/converter vs piston explainer put it in context.

Because it is bottle-only, this pen wants a bottle on the desk from day one, a Diamine 80ml is the value pick, with the colour range to make the demonstrator body worthwhile.

The nib and the writing

Nahvalur fits a #6 stainless-steel nib, and this is where the brand quietly overdelivers. They tune nibs and feeds in-house, and the community read, one the evidence supports, is that these write glassy-smooth with a wet, generous flow that needs almost no pressure. Sizes run from fine through broad plus a 1.1 stub, in Western widths, so a medium lays a broad, wet line; if you write small, drop to the fine, and the nib finder will confirm it. For a sub-$60 pen, the out-of-box writing experience punches well above the tier, and it is the reason the Original Plus gets recommended past its price on the strength of the nib alone.

Living with a vacuum filler

Honesty time: a vacuum filler asks a little more than a cartridge pen. The plunger seal wants a trace of silicone grease now and then to stay smooth, and deep-cleaning takes longer because you flush the whole barrel by working the plunger in clean water rather than swapping a cartridge. Some owners also note that with the blind cap screwed fully down, flow can slow on a long writing session, many vacuum fillers, this one included, run best with the blind cap cracked open a half-turn so the reservoir feeds freely. None of it is difficult, but it is a pen that rewards someone who enjoys the ritual rather than someone who wants to forget the filling system exists. Our how to clean a fountain pen routine covers the flush.

Where it sits in the filling-system ladder

The Original Plus is the affordable rung on a tall ladder. One step over in convenience-per-dollar is the piston-filled TWSBI Eco: less theatre, lower upkeep, similar capacity. At the top of the vacuum tree sits the Pilot Custom 823, a gold-nibbed grail with an ink shut-off valve for several times the money. The Nahvalur's pitch is simple: most of the vacuum-filler experience for a fraction of the 823's price. The best fountain pens under $100 roundup and the /best hub place it against the field.

Where it falls short

• Bottle-only. No cartridges, ever; if you want cartridge convenience for travel, this is the wrong pen.
• Upkeep is real. Seal grease and whole-barrel flushing come with the vacuum territory.
• Flow can taper. On long sessions, crack the blind cap open a half-turn to keep it feeding.
• Demonstrators stain. Saturated inks can tint the clear body over time; periodic flushing keeps it cosmetic.

Verdict

The Nahvalur Original Plus is the best-value entry into vacuum filling, full stop. It turns the hobby's most dramatic fill into a $55 pen, wraps it in a genuinely lovely swirled demonstrator, and, the real surprise, hangs an in-house-tuned, glassy-smooth #6 nib off the front. If you want to understand what a vacuum filler is without spending grail money, buy this one. Check the current Original Plus price on Amazon and pair it with a bottle of Diamine, since it drinks only from a bottle. When the upgrade itch comes, the Pilot Custom 823 is the gold-nibbed destination and the TWSBI Eco the lower-upkeep alternative. The filling-cutaway crowd will find a small-multiples print in the shop.