I just bought a AGR tank and discoverd I don't have a needle that fits. I found no fill bottle tip size.
Where can I find one that will fill the tank and let the air out too?
Not sure if anyone answered your question yet, But I use a 18 ga needle syringe to fill mine, A quick search will bring up tons of sites to buy them, On both the AGR and the AGR+ Just be sure to keep the needle tip high enough when filling not to block the hole and also out of the fluid inside to avoid wet needles, as to keep it dry around the fill hole to allow air to escape properly as you fill.
If the you cant find a small enough needle you can also fill by tipping and placing the air bubble over the punch holes in the carto, as long as the needle totally blocks flow, I have a few 14 ga needles that fit very tight, I push it all the way to the plastic base of the needle just to be sure the passage is totally blocked, then tip the tank kinda sideways upside-down placing the air bubble over my punch hole and fill with fluid till it's full and fluid touches the punch.
But if all else fails, On the AGR poly tank you can just unscrew the top cap and fill, just be careful not to damage the top o-ring when putting the cap back over the carto, and also remover the fill screw to let air out as you tighten it back on, once it's tightened down, just put the fill screw back in and vape.
Oh wow, just noticed when the OP first posted this, Oh well always room for another 2 cents I guess... I myself am looking for metal threaded replacement tubes for the AGR, I really love the AGR tanks just hate "Plastic" tubes.
Vape On!!!