This is a specialised cartridge designed to be hand modified to three separate lengths, when broken down this refill fits most multi-action pens that use the D1 format.

Note: The ‘U’ (Universal) cartridges contain a much smaller amount of ink.

Each refill writes up to 1200 feet depending on style and surface as compared to our regular PR which write approximately 12,000 feet.

The 'U' cartridge is not interchangeable with the 'PR' cartridge.

Dependable in Any Environment
Fisher Space Pen’s sealed, pressurized refill cartridge writes in the most extreme conditions — from -30ºF to +250ºF, underwater, in zero gravity, and at any angle (even upside down).

Trusted by Professionals
Chosen by ski patrols, search and rescue teams, law enforcement, and the armed forces, these refills are built for anyone who needs reliability they can count on.

Available Point Options
Ink: Fine (0.9mm)

Specifications

Material: Brass

Colour: Various

Length: 3.83"/ 3.43"/ 2.64"

Diameter: .09"

Packaging: Universal Blister Card