Pilot Fountain Pen Converter (CON-70)

Bought 3 Pilot CON-70 Fountain Pen Converters. I wanted their much larger ink capacity compared to other Pilot Converters & most other brands. Initially, after pressing & releasing the plunger at least a dozen times, I could barely get any ink at all into either my Pilot Kakuno or Pilot Lightive fountain pens. This happened with the first 2 CON-70s I used. But both couldn't possibly be duds. Not with a quality brand like Pilot. I swear by Pilot fountain pens. I have a few Pilot FPs & they've never let me down. So I had to be doing something wrong. This worked for me after some initial hiccups: Press the plunger fast with added force, but release only slowly. Once I found the right technique, the CON-70 filled up fully with 4 to 5 presses. The larger ink capacity & a bit of added weight from the CON-70 has also made the relatively lightweight Kakuno & Lightive fountain pens even more pleasurable to use. I've no hesitation recommending the Pilot CON-70, as I've done with their excellent fountain pens. However, maybe be prepared for a few hiccups with initial use.

Relative to any of the other existing or now discontinued Pilot fillers for their range of fountain pens, this has a relatively large ink capacity of over 1.6ml; it may not sound much but most will allow less than 1ml! It has a deep contact area to ensure a tight fit but it will leak if ever removed from a pen while still containing ink; most alternatives will not. Filling requires 5 or 6 pumps but it is also more prone to retaining air bubbles within the volume of ink than a typical piston filler. The downside is that it will only fit the larger Pilot fountain pens of which the 74 is the most popular. For the remainder, it is both too long and too wide to fit. Essential to active, heavy users.

Perfect fit for my Pilot Custom 74. I bought this converter to hold ink for my fountain pen. This converter holds lots of ink and has a vacuum type filling mechanism. The result it holds lots of ink and means that I'm not constantly refilling, a problem that I've had with the CON-20. I wish more manufacturers make converters like this as being easy to fill and clean makes it far superior to many other converters in other pens that I've tried in the past.

Very useful converter but I'm giving it 4 star as it is somewhat difficult to promote a good flow to the nib without causing an excessive flow!

A nice converter for my Pilot pen .

Fits in my Pilot Kakuno. It has great capacity and is easy to refill, would definitely recommend over using cartridges.

While fine for me, it doesn't work well at all for my wife, who's been using fountain pens since primary school. The first time, the required force caused the section to leap forward, and bent the nib. (Thankfully, we were able to get it writing smoothly again.) The second use required a bit of a clean-up. I suspect this will end up in my collection of pens soon, rather than hers.

This is different to most other ink converters but I found how to use it on Youtube and also the good amount of ink it holds. Excellent!

Es un convertidor grande y se llena por pulsación. No es para todas las plumas Pilot. Es un sistema muy cómodo de llenado y poco habitual. Es un buen accesorio.

お尻をプッシュする方式なので片手でインクの補充が出来ました！ kakunoにも使えるのがGood。 (kakunoには少量のコンバーターを使用しています)ライティブに使ってます。 そして容量も多いのでインク切れをそこまで気にすることなく使えます。

For me, the Pilot Custom 743 just may be the perfect pen. Substantially the same design and the same nib of the much-vaunted Custom 823, but with a converter instead of the vacuum fill. I don't want a converter so small that I have to fill it after practically every writing session. Still, to paraphrase a 16th Century Italian playwright, 'One should do with lovers exactly as one does with ink colours*: Have many, enjoy them one at a time, and change often.' The CON-70 strikes the perfect balance between ink capacity and change frequency. It fills just fine through the nib and the button, but I find it less messy and more efficient to fill from an ink syringe (easily found on Amazon; I use a 1" needle). Filling from a syringe can lead to dry starts with cheaper pens or different converters, but with the CON-70 and No. 15 nib of the Custom 743 the ink flows immediately and it always writes like a dream without issue. I've seen some people recommend a different converter for each ink colour to avoid transfer issues. I simply use a longer syringe (3-4" needle that can extend to the very back of the converter, pictured) and completely flush out the nib and converter with water between fills. That can leave small water droplets in the CON-70 that could (in theory) dilute the ink in your next fill; you can either blow it out with compressed air or I just leave it to dry overnight. If you want to refill right away, it will likely be just fine a bit wet, or just have a spare CON-70 in reserve (hence why you are here!) The Pilot Custom 743, paired with the CON-70, more than live up to the hype. Happy writing! *the original quote says 'clothes' here. But it holds true for fountain pens, so Guarini will forgive me.

I have been looking for this replacement for my Pilot Parallel Pen(5mm). Pilot Fountain Pen Converter (CON-70) is a new design and work perfectly for my purpose. Highly recommended. This part convert a cartridge calligraphy pen to a tool that can use ink fluid of your own choice. Will's Quills

Great converter with nice volume. Definitely pick it over the CON-40, which is fiddly and carries a lot less ink.