5 new "Pli-Glass" replacement sacs for Parker 51 Aerometric fountain pens

Description

5 Transparent Replacement Sacs
for Parker 51 Aerometric Fountain Pens
Brand new reproduction sacs, not Parker manufacture but made of the same time-proven super-durable "Pli-Glass" material. Fit standard Aerometric-filling 51s and other Parker pens that use the same size sac (maximum outside diameter is approximately 17/64" or 6.75mm).
One of the key features of the original Parker Aerometric filing system was the transparency of the sac. Even though many original sacs still hold ink fifty years later, few retain much of their transparency. Upgrade your classic 51 with a new sac!
NOTE: These sacs (like the original Parker sacs) may stain if used with certain highly pigmented inks. These sacs are not recommended for use with celluloid and other plastic pens where the sac will come in direct contact with the inside of the pen barrel, such as lever fillers and button fillers.
We have over 25 years of experience in vintage pen restoration and tuning. Unless otherwise noted, our pens have been fully reconditioned and are ready to write. Authenticity is guaranteed.
Payment
We are glad to combine shipping charges on multiple purchases, but it is vital that the proper checkout method be used. When buying more than one item, use the Add to Cart button -- NOT the Buy It Now button. View your cart when you are ready to complete the purchase, and if the total shipping charge is incorrect, do NOT pay. Instead, click the Request Total link at the top right and we will send you a corrected invoice.
Terms of Sale
We strongly believe in full and explicit description of any condition problems or flaws, and in very conservative grading. We stand behind our descriptions -- buy with confidence.
About Us
vintagepens
is run by David Nishimura (Vintage Pens LLC) based in historic Providence, Rhode Island. David has been buying, selling, and writing about old writing instruments since the late 1980s. He has been on eBay since 1997, the same year he launched one of the first vintage pen collecting websites. David is an active pen history blogger, and a regular presence on pen collecting forums and social media, as well as at traditional pen shows.