Zebra G-450 Refill - What Else Fits?

[Drone]

I use the Zebra G-450 Gel pen as my daily (non FP) writer for a lot of positive reasons. (BTW the links below are NOT affiliated.) But the darn G-450 refills run out too fast. I'm looking for a higher capacity refill, or a hack to give me more writing capacity. It doesn't have to be Gel, I am willing to compromise. This is what I use now:

 

* Zebra Pen G-450 Retractable Gel Pen, Black Brass Barrel, Medium Point, 0.7mm, Black Ink, 2 Count (Pack of 1) (49512), Black, Refillable 4.7 out of 5 stars 823 ratings Amazon's Choice Overall Pick 300+ bought in past month $11.73 ($5.87 / Count)

 

https://www.amazon.com/Zebra-Pen-Retractable-Barrel-49512/dp/B08XS47Q9H/

 

That's a little less than six bucks for a really well made retractable writer that is not too long or too short for a shirt pocket or a journal pen loop. The Gel refills are superb except for the ink capacity, see here:

 

* Zebra Pen G-Series Stainless Steel Gel Ink Pen JK-Refill, Medium Point, 0.7mm, Black Ink, 2-Pack 4.7 out of 5 stars 5,416 ratings 600+ bought in past month $4.09

 

https://www.amazon.com/Zebra-Stainless-Pen-JK-Refill-2-Count/dp/B0013C7N0Y/

 

Any ideas? Thank You, David

[Drone]

Okay, five months and no reply. In the mean time I made one decision and one discovery:

 

1. Decision: In the end the Zebra JK gel refills are too small. Never mind the high cost of refills, the pens just run out of ink to often. Therefore no matter how much I like the Zebra G-450, I decided to retire the pen.

 

2. Discovery: I went back to using the venerable Pilot G2 retractable Gel pen, the refill cartridge is much larger, plus I can get generic refills in bulk online (Amazon) that cost far less and (so far) perform just as well:

 

* Retractable Gel Pen Refills, Shuttle Art 30 or 60 Pack Blue, Black, or Red Rollerball Gel Ink Pens Refills, Bulk Set, 0.7mm Fine Point for Writing Journaling Taking Notes School Office Home, 4.4 out of 5 stars 576 ratings.

 

30 Count (Pack of 1) Price: $7.99 ($0.27 / Refill)

 

60 Count (Pack of 1) Price: $9.99 ($0.17 / Refill)

 

Color: Blue, Black, or Red

 

Qty.-30 Blue:

 

https://www.amazon.com/dp/B0B6P5YSNG/

 

The one problem with these refills is: Delivery for a 30-refill pack takes two days (domestic U.S. shipment with Prime). Delivery for the 60-refill pack takes at least 7 to 10 days (even with Prime). A minor annoyance for saving 10 cents per refill; $0.17 vs $0.27 per refill, a whopping 63% savings!

 

By the way:

 

Pilot G2 Gel refill measures 110.37 mm L x 5.74 mm D (4.35" L x 0.23" D)

 

Zebra JK Gel refill measures 95.51 mm L x 3.47 mm D (3.76" L x 0.14" D)