Private Reserve Infinity 4ml Sample Fountain Pen Ink

The Private Reserve 4ml sample fountain pen inks are the perfect way to try out Private Reserve's E.C.O. (Extended Cap Off) Formula that significantly increases the "cap-off" time of your fountain pen ink. The 2021 ink release is the result of many years of research and tests have shown the formula successfully extends the cap off time up to several hours. In theory, Private Reserve Infinity inks can extend the cap off time to...well, "forever."

Private Reserve Infinity 4ml sample fountain pen inks are packaged in plastic ink vitals (4ml) labeled clearly with the ink name and color on a white label on the side of the vial, as well as an ink swatch adhered to the top of the threaded, plastic cap (red or blue).

Product Specifications


Cartridge Type: Ink Sample


Available Sizes & Colors

• Private Reserve Infinity 4ml Sample Fountain Pen Ink - Infinity Black *
• Private Reserve Infinity 4ml Sample Fountain Pen Ink - Infinity Blue
• Private Reserve Infinity 4ml Sample Fountain Pen Ink - Infinity Green *
• Private Reserve Infinity 4ml Sample Fountain Pen Ink - Infinity Red *
• Private Reserve Infinity 4ml Sample Fountain Pen Ink - Infinity Turquoise *
• Private Reserve Infinity 4ml Sample Fountain Pen Ink - Infinity Violet *

The Private Reserve Infinity 4ml Sample Fountain Pen Ink usually ships within 1-3 business day unless otherwise specified or marked as special order.

* Special orders typically ship in 2-14 business days. However, occasionally due to manufacturer inventory, items can take up to 1-3 months. For a specific shipping estimate on your special order contact Customer Care.


Guaranteed Quality
Each Private Reserve Infinity 4ml Sample Fountain Pen Ink we sell is guaranteed to be genuine, authentic and will arrive brand new & unused!