Sturdy MFG Co. OneUP SturdyOne Upgrade Kit

If you already own a SturdyOne RBA, this upgrade kit takes both the looks and performance to the next level. If you have yet to try the SturdyOne, the manufacturer has purposely made the upgrade kit affordable for those who want to purchase both. 

The increased wick holes on the cap allow for users to wick their upgraded SturdyOne, like the would most other bridges. Simply run your cotton through the coil, put on the upgrade cap, over the cotton, and cut the cotton flush with outer wall of the cap. The reduced inner chamber provides more intense flavor than we had previously experienced with the OG SturdyOne RBA.