• Kennedy Ruby 21700 Mechanical Tube Mod
  • Kennedy Ruby 21700 Mechanical Tube Mod

Kennedy Ruby 21700 Mechanical Tube Mod


Ruby, Ruby, Ruby, Ruby, do ya, do ya, do ya, do ya, know what you're doing, doing to me? We know you'll appreciate what this baby with do for you: the Kennedy Ruby 21700 Tube!

If you're not aware of the original Ruby you've been missing out. This is an extremely unique design, built for those that aren't fans of un- and re-screwing attys on and off their tube. Look forward to no atty swirl with this one piece wonder!

The deck on here is just like your classic Kennedy 25 RDA, but built into the tube. Your airflow is in the same place as a 25 as well with the classic slot below the deck and brings a much smoother intake than old school fans might remember.

Of course, this newbie is fully compatible with 21700 batteries (not included), but if you do have some 20700s kicking around you can use those too. We'll pickup the 18650 adapters at a later stage, but trust us you really, really want to use a classic 21700 with this beaut.

The Ruby comes with a Constant Contact switch by standard, perfect for the lowest possible voltage drop (the Ruby's one piece design also helps here) and most comfortable throw by a wide margin. Virtually eliminate arcing and never pickup a tool set again for this baby!

The Ruby is just as stunning as its polished namesake gem, and just as sought after, so please do not delay in grabbing one. Remember these are handmade by Steve himself over in the US of A, so it could take some time to get more!


  • Dimensions: 26mm tube outer diameter, 25mm build deck
  • Battery: 1 x 21700 / 20700 (not included), 18650 with adapter (sold separately, coming soon)
  • Completely rebuildable
  • Smoother bottom airflow
  • Constant Contact Switch pre-installed:
    • Easy to clean and super smooth action
    • No tools required for adjustment
    • Virtually eliminates arcing and marks
    • Extremely low voltage drop with one piece design
  • Lifetime warranty!

What's in the bag:

  • 1 x Kennedy Ruby 21700 Mechanical Tube Mod
  • Spares: o-rings, screws