Pineider Snorkel Filler
The Pineider Snorkel is a stainless steel extender with an adaptor nozzle that fits most popular fountain pen converters. Just plug the nozzle into the converter, place the extender tube into bottle ink, and twist the converter to fill it! It keeps your converter full without having to dip your nib into ink, saving you unwanted drips and inky fingers! The Snorkel also allows you to get every last drop of ink in a bottle.
Pineider has announced that a newer model is coming but that model has currently been delayed. Any order is currently for the original snorkel filler version.