Fisher Space Pen Bold 1.3 mm Blue Refill – SPR1B in a blister pack

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The Fisher Space Pen PR Series refill is designed to write where ordinary pens fail. The SPR1B model, with a line width of 1.3 mm, lasts three times longer than standard refills.

Each refill provides over 3,600 meters of writing, depending on the surface and how it is used. This makes it an exceptionally economical and reliable solution for everyday use.

Why the Fisher Space Pen PR Refill Is Different

The key is in the design. The ball is made of tungsten carbide—one of the hardest materials used in pens. It ensures a smooth, even line under any conditions.

The ink is thixotropic and is stored in a hermetically sealed, pressurized container. An internal separator keeps it separate from the pressurized nitrogen, ensuring a constant flow without leakage or drying out.

Specifications of the Fisher Space Pen SPR1B Refill

It lasts three times as long as a regular refill
It works underwater, at any angle, and at temperatures ranging from -35°C to +121°C
Tungsten carbide ball for maximum durability
Thixotropic ink in a pressurized tank—does not leak or dry out
An internal separator separates the ink from the pressurized nitrogen
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 ink types, except for the Q4 model
Ink Color: Blue
Line thickness: 1.3 mm
Magazine length: 8.9 cm
Adapter length: 2.5 cm
Expected ink life: over 100 years

Specifications	Value
Brand	Fisher Space Pen
Model	SPR1B
Series	PR (Pressurized Refill)
Line thickness	1.3 mm
Ink Color	Blue
Magazine Length	8.9 cm
Adapter Length	2.5 cm
Ball Material	Tungsten carbide
Ink Type	Thixotropic, under pressure
Temperature range	from -35°C to +121°C
Writing Resource	over 3,600 m
Ink Life	over 100 years
Contents of the Set	Refill and white adapter for Parker

Frequently Asked Questions

How long does the Fisher Space Pen SPR1B refill last?

The Fisher Space Pen SPR1B refill provides over 3,600 meters of writing. The exact lifespan depends on the type of surface and writing style. It lasts three times longer than a standard ballpoint pen refill. The ink has an expected lifespan of over 100 years, even when not in use.

Can the Fisher Space Pen write underwater and at low temperatures?

Yes. The pen is designed to write underwater, at any angle, including upside down. It operates at temperatures ranging from -35°C to +121°C, making it suitable for use in extreme outdoor conditions. The pressurized thixotropic ink ensures a consistent flow regardless of the conditions.

For which chemicals is the SPR1B cartridge suitable?

The Fisher Space Pen SPR1B refill fits all Fisher Space Pen pens, with the exception of the Q4 model. The set includes a white adapter that extends the refill by 2.5 cm. Thanks to the adapter, it can also be used in Parker pens and similar models with the same format.

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 does not leak. When the ball moves, it softens and is applied smoothly to the surface. This technology prevents leakage and drying out even during prolonged storage. The ink is hermetically sealed in a pressurized reservoir, separated from the nitrogen by an internal separator.

What are the dimensions of the Fisher Space Pen SPR1B refill?

The length of the refill itself is 8.9 cm. The included white adapter adds another 2.5 cm, allowing it to be fitted into longer pens such as Parker. The line width is 1.3 mm, which classifies it as a bold-style pen. The ink color is blue.

What is the cartridge ball made of, and why is it important?

The ball is made of tungsten carbide—a material with exceptional hardness and wear resistance. This ensures smooth and consistent writing on various surfaces, including rough or damp ones. The hard tip is key to reliable performance in all weather conditions.

Is the Fisher Space Pen SPR1B a good gift for a man?

The Fisher Space Pen SPR1B refill is a practical, high-quality accessory, perfect as a gift for a man who appreciates durable and reliable tools. It comes in a blister pack, ready to give as a gift. It can be used with a variety of popular pens, including Parker. Find it at Dulotec.COM at a great price.

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

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SKU: d-06-15-343 Categories: Ballpoint Pen Refills, Gifts for men, Luxury Pens

Description

Specifications	Value
Brand	Fisher Space Pen
Model	SPR1B
Series	PR (Pressurized Refill)
Line thickness	1.3 mm
Ink Color	Blue
Magazine Length	8.9 cm
Adapter Length	2.5 cm
Ball Material	Tungsten carbide
Ink Type	Thixotropic, under pressure
Temperature range	from -35°C to +121°C
Writing Resource	over 3,600 m
Ink Life	over 100 years
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!