Fisher Space Pen PR Series Refill – Red Ink, 1.1 mm

The Fisher Space Pen PR (Pressurized Refill) series is a refill with exceptional durability. It writes three times longer than a standard refill and covers over 3,600 meters, depending on the surface and writing style.

The ball is made of tungsten carbide—one of the hardest materials. This ensures smooth and consistent writing under any conditions.

Cartridge Technology

The ink is thixotropic and is hermetically sealed in a pressurized reservoir. An internal separator isolates the ink from the pressurized nitrogen, ensuring reliable operation even in extreme conditions.

It lasts three times longer than a standard cartridge
It works underwater and at any angle of inclination
Temperature range: -35°C to +121°C
Tungsten carbide ball
Thixotropic ink in a sealed, pressurized container
Ink Color: Red
Line thickness: 1.1 mm
Magazine length: 8.9 cm
Cap length: 2.5 cm
Ink lifespan: over 100 years
Includes a white adapter that extends the refill by 2.5 cm for compatibility with Parker and similar pens
Compatible with all Fisher Space Pen inks, except for the Q4 model

Compatibility and Package Contents

The refill fits all Fisher Space Pen models, except for the Q4. The set includes a white adapter that extends the refill by 2.5 centimeters, making it compatible with Parker pens and similar models.

It is available in a variety of ink colors and line widths—thin and bold.

Specifications	Value
Brand	Fisher Space Pen
Series	PR (Pressurized Refill)
Model	SPR2
Ink Color	Red
Line thickness	1.1 mm
Magazine Length	8.9 cm
Cap Length	2.5 cm
Ball Material	Tungsten carbide
Ink Type	Thixotropic, under pressure
Ink Life	Over 100 years
Writing Length	Over 3,600 m
Temperature range	-35°C to +121°C
Contents of the Set	Refill and white adapter for Parker

Frequently Asked Questions

How long does the Fisher Space Pen SPR2 refill last?

The Fisher Space Pen SPR2 refill writes over 3,600 meters, depending on the surface and writing style. It lasts three times longer than a standard refill. The ink itself has a shelf life of over 100 years, making it an exceptionally reliable long-term investment.

At what temperatures does the Fisher Space Pen PR refill work?

The PR series cartridge operates within a temperature range of -35°C to +121°C. This makes it suitable for use in extreme weather conditions—both in extreme cold and at high temperatures. The thixotropic ink in a hermetically sealed, pressurized reservoir ensures stable operation throughout the entire range.

Can the pen write underwater?

Yes, the Fisher Space Pen SPR2 writes underwater. It also works at any angle, including upside down. This feature is due to its pressurized system, in which nitrogen pushes the ink toward the ballpoint tip regardless of the pen’s position.

With which chemicals is the SPR2 cartridge compatible?

The SPR2 refill is compatible with all Fisher Space Pen inks, except for the Q4 model. The set includes a white adapter that extends the refill by 2.5 centimeters. Thanks to this adapter, the refill can also be used in Parker pens and similar models with a longer reservoir.

What is thixotropic ink, and why is it important?

Thixotropic ink is a special type of ink that has a thicker consistency when at rest and liquefies only when in motion—in this case, when the ball is spinning. It is hermetically sealed in a pressurized reservoir, separated from the nitrogen by an internal separator. This technology prevents the ink from drying out or leaking, even if the marker is not used for a long time.

What material is the cartridge's ball made of?

The tip of the Fisher Space Pen SPR2 refill is made of tungsten carbide—a material of exceptional hardness. It is this material that ensures smooth, consistent writing even under extreme conditions. Tungsten carbide is significantly more wear-resistant than the standard materials used in ordinary refills.

What are the dimensions of the Fisher Space Pen SPR2 refill?

The barrel is 8.9 centimeters long, and the cap is 2.5 centimeters long. The line width is 1.1 millimeters, which corresponds to a Medium line width. The included adapter extends the refill by an additional 2.5 centimeters for compatibility with longer pens.

Original price was: 10,00 €.Current price is: 9,00 €.

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SKU: d-06-15-350 Categories: Ballpoint Pen Refills, Gifts for men, Luxury Pens

Description

Specifications	Value
Brand	Fisher Space Pen
Series	PR (Pressurized Refill)
Model	SPR2
Ink Color	Red
Line thickness	1.1 mm
Magazine Length	8.9 cm
Cap Length	2.5 cm
Ball Material	Tungsten carbide
Ink Type	Thixotropic, under pressure
Ink Life	Over 100 years
Writing Length	Over 3,600 m
Temperature range	-35°C to +121°C
Contents of the Set	Refill and white adapter for Parker

Additional information

Weight	0,01 kg

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About brand

The Space Pen—also known as the Zero Gravity Pen—is a pen that, thanks to its patented sealed pressurized ink cartridge, will write under almost any conditions (underwater and at extreme temperatures) and on almost any surface (greasy or wet paper and at any angle). These pens were first used in 1968 on the Apollo 7 mission. Since then, the Fisher Space Pen has been part of every NASA manned spaceflight. The products have also been used by the Russian and Chinese space programs! The Space Pen—a product that works under virtually any conditions. Whether upside down or floating in zero gravity, it doesn’t matter—these pens will get the job done. Write anytime, anywhere!