If you’ve already experienced Pilot cartridge/converter pens, then this is a good time to try piston vacuum fillers. The Pilot Custom 823 is a great option, especially if you’re someone who does a lot of writing and needs a huge ink reservoir. This pen can store up to 2.55 ml of ink and has a translucent barrel that lets you see how much you have left before you need to refill. It’s a workhorse with an understated design installed with a 14-karat gold nib for a smooth and well-balanced writing experience. 

We have for sale a brand-new Pilot Custom 823 Transparent with an M nib. It comes complete with its box, papers, and other inclusions. 

Capped: 14.9 cm. 
Uncapped: 13.1 cm.