Skip To Content

OBS Engine Nano RTA - Two-Post



Availability: In Stock

Product info:

The OBS Engine Nano RTA is the progressive evolution of the Engine series, presenting a flavor-enhanced platforms within a compact chassis that excels at both flavor recreation and unique airflow deliver.

*Required fields

The OBS Engine Nano RTA is the progressive evolution of the Engine series, presenting a flavor-enhanced platforms within a compact chassis that excels at both flavor recreation and unique airflow deliver. The Engine Nano RTA measures 25mm in diameter, capable of holding an impressive juice reservoir of 5.3 milliliters, filled via OBS' signature sliding top side-fill port. The Engine Nano expands upon OBS's original Engine platform, catering to a flavor orientated output within the isolated deck design, featuring a build deck cutout that ensures efficient assembly of wicking properties and user-friendly efficiency. The unit implements a two-post, single terminal design upon the 17mm build deck, top secured via flathead Hex screws for single coil configuration. The wicking system is integrated directly into the deck, with two diameter holes positioned in front of each post for convenient and natural wicking. Maintaining performance capability, the Engine Nano RTA integrates a unique top airflow delivery system, where air channel enters the system through triple 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. Elevating the flavor-orientated atomizer tank segment with great versatility and rangy performance capability, the OBS Engine Nano RTA is a phenomenal compact system designed for advanced builders.

OBS Engine Nano RTA Features:

  • 25mm Diameter
  • 5.3mL Juice Reservoir
  • Superior 304 Stainless Steel Construction
  • Pyrex Glass Reinforcement
  • Two-Post, Single Terminal Design
  • Top-Secured via Flathead Hex Screws
  • Single Coil Configuration
  • Deckmilled Negative
  • PEEK Insulator
  • Two Wicking Ports
  • Unique Airflow Circulation System
  • Triple Slotted Top Airflow Control
  • Redirected Air Channel 
  • Convenient Slide-to-Open Side-Fill Gasket
  • POM Widebore Drip Tip - Food-Grade
  • 510 Connection


  • 1 OBS Engine Nano RTA
  • 1 Replacement Glass Tube
  • 1 Allen Key
  • 1 Cotton Pad
  • 1 Prebuilt Coil
  • Spare Parts and O-Rings

This product is for advanced users only. It consists of risk of damaging your mods, devices, and batteries if it is being used improperly. Please make sure that you have great understanding and have done researches on this product before purchasing.

Note: When it comes to using RDA, RDTA, and RDTA, we strongly recommended to wash and clean all the atomizers thoroughly and carefully. Likewise, please have a great sense of knowledge when it comes to handling and using these products.

We always strongly recommend testing the coils with ohm-meter before using them with your mods, devices and batteries. Coils with low resistance are not suitable with all mods, devices and batteries. Please make sure that your mods, devices and batteries can handle low resistance before using them.

Note: There is always an inherent risk when using any rechargeable batteries at anytime and under any circumstances. and any of’s parent and subsidiary companies are not held responsible for any damage for any modification of the batteries, chargers, devices and other products that we carry in any form or shape, this is including pack making. and any or all of’s parent and subsidiary companies will not be held responsible or liable for any injury, damage, or defect, permanent or temporary that may be caused by the improper use of a Li-ion (Lithium-ion), LiPo (Lithium-ion Polymer) and any rechargeable battery/batteries as well as chargers. Please have a greater understanding of the batteries/chargers you are using and how to care for them properly.

When working with Li-ion (Lithium-ion), LiPo (Lithium-ion Polymer) and any rechargeable cells, please be cautious and carefully use as they are very sensitive to charging characteristics and may explode or burn if mishandled. Please make sure that you have great knowledge on all rechargeable batteries before you use them. Always charge batteries at the clean and fire-proof surface. Never leave charging batteries unattended. If you see that there are visible damages on the batteries, please do not use. Always keep, store and transport the rechargeable cells in a safe, non-conductive container in controlled environment.