---
product_id: 4839689
title: "Fine Point Pressurized Cartridge Refill, Blue Ink, 1 Pack"
brand: "fisher space pen"
price: "€ 25.50"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/4839689-fine-point-pressurized-cartridge-refill-blue-ink-1-pack
store_origin: IE
region: Ireland
---

# Writes underwater & on almost any surface Pressurized cartridge writes at any angle Operates from -30°F to 250°F Fine Point Pressurized Cartridge Refill, Blue Ink, 1 Pack

**Brand:** fisher space pen
**Price:** € 25.50
**Availability:** ✅ In Stock

## Summary

> 🪐 Write beyond limits with the pen that’s out of this world!

## Quick Answers

- **What is this?** Fine Point Pressurized Cartridge Refill, Blue Ink, 1 Pack by fisher space pen
- **How much does it cost?** € 25.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/4839689-fine-point-pressurized-cartridge-refill-blue-ink-1-pack)

## Best For

- fisher space pen enthusiasts

## Why This Product

- Trusted fisher space pen brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Ink:** Durable cartridge lasts significantly longer than standard refills
- • **Writes Anywhere, Anytime:** Pressurized refill ensures smooth ink flow even upside down or underwater
- • **Extreme Temperature Proof:** Reliable performance from freezing cold to scorching heat (-30°F to 250°F)
- • **Smudge-Resistant Blue Ink:** Quick-drying, permanent oil-based ink perfect for lefties and fast note-takers
- • **Trusted by Pros & Explorers:** Used by astronauts, engineers, and adventurers worldwide

## Overview

The Fisher Space Pen Fine Point Pressurized Cartridge Refill in blue ink delivers unmatched versatility and reliability. Engineered to write smoothly at any angle, in extreme temperatures (-30°F to 250°F), underwater, and on nearly any surface, this refill is trusted by astronauts and professionals alike. Its long-lasting, quick-drying oil-based ink resists smudging and evaporation, making it the ultimate choice for those who demand performance in any environment.

## Description

desertcart.com : Fisher Space Pen Fine Point Pressurized Cartridge Refill, Blue Ink, 1 Pack : Office Products

## Features

- Blue Fine Point Refill: The pressurized cartridge refills can be used in any pen from the Fisher Space Pen collection excluding the infinium and stick pens
- Write at any Angle: Fisher Space Pens are versatile and practical ballpoint pens that can smoothly write at any angle, even upside down with reliable performance on almost any surface
- Write in Extreme Temperatures: All Fisher Space Pens write in extreme temperatures ranging from -30°F to 250°F (-34° to +121°C), underwater, in space or any other harsh environment
- Quality and Reliability: Trusted by Astronauts, Explorers, and Professionals, Fisher Space Pens are often used in industries including Engineering, Aviation, Science, and Outdoor Adventures
- Explore The Fisher Space Pen Collection: Try our full collection of versatile and functional pens designed to write in Zero Gravity, Underwater, Through Oil and Grease and in Extreme Temperatures.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00168YNEO |
| Best Sellers Rank | #82,290 in Office Products ( See Top 100 in Office Products ) #598 in Ink Pen Refills |
| Brand Name | Fisher Space Pen |
| Customer Reviews | 4.7 4.7 out of 5 stars (4,035) |
| Global Trade Identification Number | 00747609111118, 07476091111186 |
| Included Components | 9004524 |
| Ink Color | Blue |
| Item Dimensions | 3.5 x 0.2 x 0.2 inches |
| Item Weight | 13.61 g |
| Manufacturer | Fisher Space Pen |
| Manufacturer Part Number | SPR1F |
| Model Number | SPR1F |
| Number of Pieces | 1 |
| Package Size Name | Single |
| Point Type | Fine |
| Style | Fine Point |
| UPC | 097914378943 047609111119 747609111118 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Fisher Space Pen
- **Item Weight:** 13.61 g
- **Item dimensions L x W x H:** 3.5 x 0.2 x 0.2 inches
- **Number of Pieces:** 1
- **Style:** Fine Point

## Images

![Fine Point Pressurized Cartridge Refill, Blue Ink, 1 Pack - Image 1](https://m.media-amazon.com/images/I/61rvRl1YhDL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Is there a difference between the spr4 and the pr4?**
A: The "PR" stands for  Pressurized Refill and the PR4 is the black refill that fills most of the standard Fisher Space pens and other similar pens.  If the code ends in a "B", then it's a bold, or ends in a "F" then it's a fine point.  The numeric value after the PR indicates the color (1= blue  2=red, 3=green, 4=black, etc.
I believe that the "SPR" simply means that the package includes the little plastic adapter piece that makes the refill Parker compatible.  All my refills are the SPR version and work in either Fisher Space Pens (without the plastic adapter) or in my Parker Jotter pens (with the adapter).
BTW - Fisher also makes refills with a label "C" like C1 or C4 which are for Cross pens.

**Q: Will this refill work in a Bullet space pen?**
A: Greg K,This refill does work correctly in several Bullet Space Pens I purchased!

**Q: What is the tip size?  I like a solid 1.0, would that be medium or bold?**
A: I would have to say this is more of a medium than a bold.  Most 1.0 pens that I have purchased like the Pilot G-2 or Uniball 207 Gel Impact are bold, which I prefer.  The Fisher Space Pen refill is less so to me, but still good.   What I REALLY like about the Fisher is how exceptionally smooth the ink flow is.

**Q: Will this fit the zebra sl-f1 mini ballpoint pen?**
A: That I do not know.

## Frequently Bought Together

- Fisher Space Pen Fine Point Pressurized Cartridge Refill, Blue Ink, 1 Pack
- Fisher Space Pen Chrome Bullet Space Pen
- Fisher Space Pen Matte Black Bullet Space Pen with Clip

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-11-01*