Filling Systems
Cartridge, converter, piston, vacuum, eyedropper — capacity vs ceremony.
How a pen drinks shapes how you live with it. Cartridges travel; converters unlock bottles; pistons carry a week of writing; vacuums fill with a thunk; eyedroppers turn the whole barrel into a tank. We map each mechanism’s capacity, mess factor, and maintenance honestly — including the ones we’d skip.
Common questions
Reader favorites
The short list — see the full ranking on the best-pens desk.
Sailor Pro Gear 21k gold fountain pen
$325.00
Check pricePelikan M400 fountain pen
$289.05
Check pricePelikan M205 fountain pen
$121.68
Check price
A plain-ink note: some links on this page are affiliate links. As an Amazon Associate we may earn a commission when you buy through them — at no extra cost to you. It never changes the price you pay, and it never changes a verdict.
63 guides on the desk
42 pens & inks vetted
2,638 reader price checks
The specimen press
Original nib & ink art, made to order.
