Where to fill CO2 tanks in Sweden?

[hbar]

I recently moved to Sweden from the US (sorry for the English, my Swedish is terrible) and got set up with a kegerator. I purchased a CO2 tank, but I have no idea where to get it filled. In the US you usually had to go to a fire extinguisher service or a welding supply store, but by google translate-powered searching is failing me here. Where is a good place (ideally close to Södertälje or a train line) to fill a tank?

I do have the SodaStream adapter, but it really does not work well and I want to get back to a proper tank.

[Djonk]

Try calling the number on this site: https://www.brandtjanst.se/kontakt/

[peterg]

I know a serius and not expensiv place just south of Sthlm, Tyresö. Do you want the phonenumber?

[Hövdingen]

I know a serius and not expensiv place just south of Sthlm, Tyresö. Do you want the phonenumber?

Vilket ställe är det? Råkar bo i Tyresö och har haft svårt att hitta någonstans att fylla.

[peterg]

Kontakta Stefan 0704971930 på Dafo Vindkraftsvägen 8, Tyresö.
Jag betalar 200kr för en påfyllning.

/peter