Pressurised refills fit all Fisher Space Pens & by using the adapter supplied they can also be used in Parker style pens.

Give your favourite pen a new lease on life with a Fisher Space Pen Refill. If you have a pen that you could never part with for sentimental reasons or because you just like it too much, you will not believe the difference a Fisher Space Pen refill will make and Fisher Space Pen refills are available to fit most brands.  

Ordinary ballpoint pens rely on gravity to feed the ink and there is an opening in the refill to allow air to replace the ink as it is used. Fisher Space Pen refills are completely sealed and pressurised with liquid nitrogen which feeds the ink to the ball point. They do not need gravity to work which is why they can write in any position - sideways and even upside down.   Because they are completely sealed they will never leak - no more ruined shirts or jackets ! They they will not dry out like ordinary pens where the ink is exposed to the air giving them a shelf life of 100 years instead of one to two years like ordinary ballpoint pens.

They write at any angle, they will NEVER leak in your pocket, they never dry out, they will write on damp and oil stained paper, they will work in extreme heat and cold, and even in the vacuum of Space - which is why NASA took the Fisher Space Pen to the moon.   The SPR Series Refills fit most Fisher Space Pens and with the supplied adaptor fit most Parker ballpoint pens and most promotional pens that use the Parker style refill.   Fits the following Fisher Space Pens: Bullet, Astronaut, SpaceTec, Military, Zero Gravity, Futura, Cap-O-Matic, Neck Chain, Explorer. Fits all Sensa pens and Retro 51 Tornado pens. Comes with Adaptor to fit most Parker style pens.

If your pen takes the standard Parker Pen Refill that is available almost anywhere then the SPR series refill will fit.   SPR refills come in a medium, fine and bold points and in a wide range of colours.