what gauge needle does everyone use to fill the pen vials ?
OP
what gauge needle does everyone use to fill the pen vials ?
5ml syringe so you can suck the air out as you fill and not mess around with a vent needle
That’s an interesting approach. I assume you’re only able to use 2ml of reconned then, yes? Or do you have residual pressure afterwards? The math ain’t mathing for me with a 3ml fill.
By the time all the solution is in the vial you’ve got an empty 5ml syringe, do your math again 😉
Never had an issue getting a full 3ml from a 5ml syringe into a pen part and created a vacuum
That’s outstanding! When I use up the last of my 3mls, I’m definitely trying this. Thanks for sharing the tip!!
I stumbled upon it tbh I got given a load of 5ml pipes and just started using them for pep vials
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