Standard Straight Latex Ink Sacs
To find out what size sac your pen requires, measure the diameter of the sac peg as shown below. Use this measurement to find the size of sac.
FOR LEVER AND BUTTON FILL PENS
ASSORTED SIZE C CLIPS NOW AVAILABLE FOR LEVER FILL PENS
Straight ink sacs are approximately 80mm in length and should be cut to fit your pen.
These sac's are made in the traditional way, by dipping the former into liquid latex.
Size 10 Fits a sac peg of 4.0 mm
Size 11 Fits a sac peg of 4.3 mm
Size 12 Fits a sac peg of 4.7 mm
Size 13 Fits a sac peg of 5.1 mm
Size 14 Fits a sac peg of 5.5 mm
Size 15 Fits a sac peg of 5.9 mm
Size 16 Fits a sac peg of 6.3 mm
Size 16 Tapered Fits a sac peg of 6.3 mm OUT OF STOCK
Size 17 Fits a sac peg of 6.7 mm
Size 18 Fits a sac peg of 7.1 mm
Size 19 Fits a sac peg of 7.5 mm
Size 20 Fits a sac peg of 7.9 mm
Size 21 Fits a sac peg of 8.3 mm
Size 22 Fits a sac peg of 8.7 mm
Size 23 Fits a sac peg of 9.1 mm
Size 24 Fits a sac peg of 9.5 mm
The sizing of ink sac's is in units of 64th's of an inch. Therefore a size 16 is 16 / 64th's of an inch in diameter.
In this metric era it's a little difficult to measure in that format.
The above table of sac sizes has been converted to the nearest metric mm equivalent.
If the size of the sac peg fall between two sizes choose the smaller size sac.