Is there a difference between the spr4 and the pr4?

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.

Will this refill work in a Bullet space pen?

Greg K,This refill does work correctly in several Bullet Space Pens I purchased!

What is the tip size? I like a solid 1.0, would that be medium or bold?

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.

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fisher(フィッシャー) ボールペン替芯ブラック(B)太字

Product ID: 738532410

Details

スタイル
ボールポイント
ブランド
Fisher
個数
1
商品の重量
0.01 キログラム
商品寸法 (長さx幅x高さ)
8.9 x 0.5 x cm

⚡Smooth ballpoint for effortless flow

🖤Bold black ink for standout writing

🖊️8.9cm sleek refill size

S$13

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Description

🖊️ Elevate your pen game—because your ideas deserve boldness.

PRECISION FIT - Designed to perfectly replace your Fisher pen refill—no hassle, just seamless writing.
EFFORTLESS FLOW - Experience smooth, skip-free ink delivery that keeps your ideas flowing without interruption.
BOLD BLACK BRILLIANCE - Make every word pop with rich, deep black ink that commands attention.
COMPACT LIGHTWEIGHT - At just 0.01 kg and under 9cm, this refill is travel-ready for your on-the-go lifestyle.
TRUSTED AMERICAN CRAFTSMANSHIP - From the iconic Fisher brand, a legacy of quality that professionals rely on worldwide.

This Fisher black ballpoint pen refill (model SPR4B) offers bold, smooth ink flow in a compact 8.9cm size, engineered for seamless compatibility with Fisher pens. With a 4.6-star rating from over 10,700 users, it’s a trusted choice for professionals seeking reliable, standout writing performance.

Specifications

ASIN	B000FTGCFI
Amazon 売れ筋ランキング	文房具・オフィス用品 - 19,932位 ( 文房具・オフィス用品の売れ筋ランキングを見る ) 詰め替えインク - 586位
GTIN (Global Trade Identification Number)	00747609113419
UPC	747609113419
おすすめ度	4.6 5つ星のうち4.6 (10,743) var
インク色	ブラック
パッケージ内に含まれる商品の数	1
ブランド名	Fisher
メーカー名	フィッシャー(Fisher)
メーカー型番	SPR4B
ユニット数	1 個
商品の重量	0.01 キログラム
商品スタイル	ボールポイント
商品本体サイズ	8.9 x 0.5 x 0.5 cm
型番	SPR4B
筆記具の線の種類	太字

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S$13

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to SINGAPORE.

Secure transaction

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Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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fisher(フィッシャー) ボールペン替芯 ブラック(B)太字

Details

Details

Description

Specifications

Common Questions

fisher(フィッシャー) ボールペン替芯ブラック(B)太字