I've got a 2lb co2 tank I use for boost control, sick of messing with welding supply houses that don't want to purge their lines to fill a 2lb bottle, not to mention the risk of running out at the track. I see a lot of guys fill them with nitrous, but I know the fittings are different between the two bottles.
Anyone know what kind of conversion fitting I'd need to be able to get my co2 tank filled at a nitrous refill station?
My bottle looks like this:
Anyone know what kind of conversion fitting I'd need to be able to get my co2 tank filled at a nitrous refill station?
My bottle looks like this:
![](http://www.harborfreight.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/i/m/image_13677.jpg)
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