Does it have flow problems either?

With regular use there is no flow problem.

Does it fit a kaweco al sport?

Yes it does. Regards, Kaweco Team India

I have this piston type with my sport series pen but cant fill up the ink any video?

With the black piston pushed in, dip the mouth of the converter into the ink. While keeping the mouth immersed in the ink, pull the piston up. The ink will be sucked into the converter. The converter being tiny, this exercise can be clumsy and even impossible as the ink in your bottle recedes. So what I did is to just use a normal syringe to fill the converter.

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Kaweco Plastic Mini Piston Type Converter, Ink Color-Black

Kaweco Plastic Mini Piston Type Converter, Ink Color-Black

Product ID: 93603344

Details

Age Range (Description)
Adult
Brand
Kaweco
Colour
Silver
Ink Colour
Black
Writing instrument form
Roller Ball

💧Leak-resistant plastic

🧩Compact & compatible

🖋️Mini piston mechanism

Description

🖋️ Elevate your pen game with precision ink flow — don’t get left behind!

AMBIDEXTROUS DESIGN - Comfortable and easy to use for both left and right-handed users.
COMPACT COMPATIBILITY - Perfectly fits Kaweco Sport series pens without bulk.
TRUSTED CRAFTSMANSHIP - From Kaweco, a heritage brand since 1883 known for precision.
EFFORTLESS INK REFILLING - Twist-top piston design for smooth, mess-free ink draw.
DURABLE LEAK RESISTANT BUILD - High-quality plastic ensures clean, reliable performance.

The Kaweco Plastic Mini Piston Type Converter is a compact, durable ink converter designed specifically for Kaweco Sport fountain pens. Featuring a smooth twist-top piston mechanism, it allows quick and clean ink refills. Made from high-quality plastic, it resists leaks and fits ambidextrously, making it an essential upgrade for fountain pen enthusiasts seeking reliable performance and classic craftsmanship.

Specifications

ASIN	B01F42TJQ4
Age Range Description	Adult
Best Sellers Rank	#43,822 in Office Products ( See Top 100 in Office Products ) #2,709 in Office Electronics Accessories
Body Shape	Cylindrical
Brand Name	Kaweco
Colour	Silver
Customer Reviews	4.4 4.4 out of 5 stars (3,304)
Drill Point	ball tip
Global Trade Identification Number	04250278611309
Hand Orientation	Ambidextrous
Ink Base	Water
Ink Colour	Black
Item Diameter	1 Millimetres
Item Dimensions	5.2 x 1 x 1 Centimeters
Item Weight	3 Grams
Manufacturer	Kaweco
Material Type	Plastic
Model Name	â€Ž20000903
Model number	10001349
Recommended Uses For Product	Drawing
Style Name	Classic
Subject Character	Sport
Theme	Sport
Unit Count	1 Count
Writing Instrument Form	Roller Ball Pen

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