UWELL Crown 5 Sub Ohm Tank Buy It! Link: https://bluediamondvapors.com/product/uwell-crown-5-sub-ohm-tank/ The new UWELL Crown 5 Sub Ohm tank is now available for purchase in Las Vegas, and can be found on our website as well as in-store.  This tank is considered to be the best of the best of 2021, and is guaranteed to satisfy …