---
product_id: 777881245
title: "SPR4B Point Pressurised Refill black/bold"
brand: "fisher space pen"
price: "HK$134"
currency: HKD
in_stock: true
reviews_count: 5
category: "Fisher Space Pen"
url: https://www.desertcart.hk/products/777881245-spr4b-point-pressurised-refill-black-bold
store_origin: HK
region: Hong Kong
---

# Writes in zero gravity & underwater Operates -30ºF to +250ºF 98mm length - perfect fit SPR4B Point Pressurised Refill black/bold

**Brand:** fisher space pen
**Price:** HK$134
**Availability:** ✅ In Stock

## Summary

> 🚀 Write Beyond Limits — The Pen That Defies Gravity and Time

## Quick Answers

- **What is this?** SPR4B Point Pressurised Refill black/bold by fisher space pen
- **How much does it cost?** HK$134 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/777881245-spr4b-point-pressurised-refill-black-bold)

## 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

- • **Bold, Smooth Writing:** Rollerball tip delivers crisp, bold lines for professional impact every time
- • **Century-Long Shelf Life:** Ink stays fresh and ready for up to 100 years—write now, or later!
- • **Space-Grade Performance:** Pressurized ink cartridge writes smoothly underwater, upside down, and in zero gravity
- • **Universal Compatibility:** Includes plastic adapter to fit any standard ballpoint pen refill slot
- • **Extreme Temperature Resilience:** Reliable ink flow from freezing cold to scorching heat (-30ºF to +250ºF)

## Overview

The Fisher Space Pen SPR4B refill is a 98mm long, pressurized ink cartridge designed to fit any standard ballpoint pen with the included adapter. Engineered to perform flawlessly in extreme conditions—from -30ºF to +250ºF, underwater, and even in zero gravity—this bold rollerball refill offers a smooth writing experience with an estimated 100-year shelf life, making it the ultimate choice for professionals who demand reliability and style.

## Description

fisher space pen

Review: Refill per penna tattica - Anni fa mi hanno regalato una bellissima penna tattica del marchio Colt che uso anche come penna in caso di necessità, da diverse ricerche sul web ho trovato che questi refill sono i migliori e adatti alla sostituzione dello slot dell'inchiostro e così è stato, è perfetta, per sfizio ho voluto provare il color marrone e scrive benissimo!
Review: Fits Parker Pen - Fits my Parker ballpoint perfectly with the included adaptor. Very good product and writes smoothly.

## Features

- They come with a plastic adapter that will allow the refills to fit any standard ball pen refill.
- Length: 98mm.
- They have an estimated 100 years shelf life.
- Sealed Pressurized Ink Cartridge.
- Performs in temperatures from -30ºF to +250ºF, underwater, in zero gravity.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000FTGCFI |
| Best Sellers Rank | #30,480 in Office Products ( See Top 100 in Office Products ) #248 in Pen Refills |
| Brand | Fisher Space Pen |
| Brand Name | Fisher Space Pen |
| Customer Reviews | 4.7 out of 5 stars 4,024 Reviews |
| Global Trade Identification Number | 00747609113419 |
| Ink Color | Blue,Black |
| Item Dimensions | 8.9 x 0.5 x 0.5 centimeters |
| Item Weight | 0.01 Kilograms |
| Item dimensions L x W x H | 8.9 x 0.5 x 0.5 centimeters |
| Item height | 0.2 inches |
| Item weight | 0.01 Kilograms |
| Manufacturer | Fisher Space Pen |
| Number of Pieces | 1 |
| Number of pieces | 1 |
| Package Size Name | Single Pack |
| Point Type | Bold |
| Style | Rollerball |
| UPC | 747609113419 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Fisher Space Pen
- **Style:** Rollerball
- **Item dimensions L x W x H:** 8.9 x 0.5 x 0.5 centimeters
- **Item weight:** 0.01 Kilograms
- **Number of pieces:** 1

## Images

![SPR4B Point Pressurised Refill black/bold - Image 1](https://m.media-amazon.com/images/I/719ArlKsjtL.jpg)

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Refill per penna tattica
*by K***E on 13 December 2019*

Anni fa mi hanno regalato una bellissima penna tattica del marchio Colt che uso anche come penna in caso di necessità, da diverse ricerche sul web ho trovato che questi refill sono i migliori e adatti alla sostituzione dello slot dell'inchiostro e così è stato, è perfetta, per sfizio ho voluto provare il color marrone e scrive benissimo!

### ⭐⭐⭐⭐⭐ Fits Parker Pen
*by A***R on 16 November 2025*

Fits my Parker ballpoint perfectly with the included adaptor. Very good product and writes smoothly.

### ⭐⭐⭐⭐⭐ Fisher Space Pens Are The Best
*by C***S on 6 June 2016*

Fisher refills work any time anywhere. I use nothing else in all my pens.

## Frequently Bought Together

- Fisher Space Pen Bold Point Pressurized Cartridge Refill, Black Ink, 1 Pack
- Fisher Space Pen Chrome Bullet Pen, Ballpoint, Brass, Black Ink

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-28*