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Sub Ohm Innovations Proto RTA

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Sub Ohm Innovations Proto RTA Description:

Introducing the Proto RTA designed by Sub Ohm Innovations, a small format tank with a 4.5ml capacity, postless deck, and top-wicking design. Made for those that are in love with the Big Dripper, the Proto can handle up to 200W or more with the right build and wick.


  • 22mm diameter
  • 40mm tall excl. drip tip
  • Top-fill system
  • Tank capacity: 4.5ml
  • Adjustable airflow control
  • Postless dual coil RTA design
  • 304 Stainless Steel


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