OBS Engine Mini RTA


OBS Engine Mini RTA

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The OBS Engine Mini RTA is the compact iteration of the innovative OBS Engine platform. precisely designed within an anti-leaking apparatus that features top airflow system, sliding top side-fill port, and POM drip tip. The newly crafted Engine Mini measures 23 in diameter with a maximum juice capacity of 3.5 milliliter, filled via OBS' signature sliding top side-fill port that measures 3mm by 5mm. The entire apparatus is brilliantly constructed similar to the original OBS Engine, with the build deck built isolated from the rest of the tank, allowing for a manufacturer's rated 30% reduction in temperature. Following the instructions, the build deck cutout ensures efficient assembly with the rest of the structure. The build deck of the Engine Mini implements a two-post, dual terminal design, with terminal posts measuring 2mm in diameter and ample build area for large coil structures. The design of the chamber ensures a flavor-enhanced performance, with a compact cap-off of the atomizer core. Quad wicking ports are located beneath the deck, allowing for an effective and convenient wicking process. Maintaining performance capability, the Engine Mini RTA integrates a unique top airflow delivery system, where air channel enters the system through adjustable airslots at the top cap. This process funnels down airflow to create an effective passage to the atomizer core, providing ample cooling properties for maximal throttle during high-performance configurations. Exemplary designed with OBS's precise manufacturing process, the OBS Engine Mini RTA is the evolution of compact system that offers a perfect balance of value, performance, and functionality.

OBS Engine Mini RTA Features:

  • 3.5mL Juice Reservoir
  • 23mm Diameter
  • Superior 304 Stainless Steel Construction
  • Pyrex Glass Reinforcement
  • Floating Build Deck Design - Isolated From Base
  • Two-Post, Dual Terminal Design
  • Side-Secured via Phillips Screws
  • Deckmilled Negative
  • PEEK Insulator
  • Four Wicking Ports
  • Unique Airflow Circulation System
  • Dual Adjustable Top Airflow Control
  • Redirected Air Channel 
  • Convenient Slide-to-Open Side-Fill Gasket
  • POM Widebore Drip Tip
  • 510 Connection


  • 1 Engine Mini RTA
  • 1 Replacement Glass Tube
  • 1 Cotton Pad
  • Spare O-Rings and Screws
  • Instructional Maual