This is a Revolver Chamber design driptip. It will fit in 510 size holes in most RDAs and RTAs.
Photo shown is 3D printed in 'Polished Sterling Silver' version.
We recommend using this driptip on RTAs rather than RDAs as it (when printed in silver) can heat up quickly.
We have tested on several RTAs including Zephyrus, Atlantis, Subtank etc. successfully without it overheating.
O-rings for the drip is not included. We have tested 1.5 x 8 x 8mm O-rings from Fasttech.com. Link below.