Esterbrook Fountain Pens

Conklin's Self-Filling Fountain Pen

We offer two assortments for those unable to determine exactly which sacs to order. The Collector’s Assortment has five each of the most common sizes; 15, 16, 17, 18 & 20 Straight. The Professional Assortment offers 100 sacs in eight sizes, from 14 to 22 Straight in varying quantities. Neither assortment offers any of the Special Items nor any necked sacs.

While we offer the correct repair parts we do not offer any specific repair instructions. We do however suggest that you clean the pen thoroughly before repairing and use common sense - do not use excessive force and be patient. Most pens require the sac to be glued to the section. We recommend using orange shellac which was the original adhesive used in the manufacture of your pen. Some exceptions being the Parker Vacumatic and the Waterman Ink-Vue which require no adhesive.

Early plunger filled pens made by Sheaffer, Conklin, Wahl and Onoto do not use conventional sacs. We do not offer the gaskets and seals for these pens. However, most of these pens can be repaired. For a catalog of these repair parts and some pen repair tools send a SASE (#10 Size) to: