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The Sherman 28mm RTA by Asylum Mods



Availability: Out of Stock

Product info:

The Sherman 28mm RTA is the flagship atomizer from the U.K. hardware manufacture Asylum Mods, deploying a performance-orientated two-post shelf-style build deck with clamp mechanism and redirected bottom airflow within a beautiful chassis.

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The Sherman 28mm RTA is the flagship atomizer from the U.K. hardware manufacture Asylum Mods, deploying a performance-orientated system featuring a two-post shelf-style build deck with clamp mechanism and redirected bottom airflow within a beautiful chassis. Measuring 28mm in diameter, The Sherman RTA delivers high-quality Stainless Steel chassis construction and ULTEM glass reinforcement for a visually-striking contrasts in color and premium handling. The standard structure has a juice capacity of 2 milliliters, with an optional juice expansion chimney and glass tube to increase the maximum reservoir to 4mL. The build deck deploys a modernized two-post design, integrating a spring-loaded component to the clamp-secured quad terminals that caters to complex and large coil configurations. Coil leads are inserted within the widespace between the large surface area of the terminal base and the clamp itself, secured via a centrally positioned Slotted flathead screws for increase contact and precise connection. Air delivery is fully adjustable via knurling of the bottom base, exposing four 2.5mm airslots on each side of the chassis for a versatile range of airflow preference. This range, coupled with a conical top cap design can create a phenomenal balance between pure cloud chasing mode with top-level flavor recreation. The utilization of a 810 top cap allows for personal customization, including a pre-installed 13mm ULTEM widebore drip tip as well as a 15mm Stout ULTEM widebore drip tip for excellent heat spoofing. Offering superior performance and dynamic range within one of the most impressive rebuildable tank structure in the industry, the Sherman 28mm RTA is a high-end atomizer worthy of collection and recommendation for advanced builders.

Asylum Mods - The Sherman 28mm RTA Features:

  • 28mm Diameter
  • 2mL Standard Juice Capacity
  • 4mL Maximum Juice Capacity - Tube & Chimney Extension
  • Superior Stainless Steel Construction
  • ULTEM Glass Reinforcement
  • Unique Clamp-Style Two-Post Design
  • Centrally Top-Secured via Slotted Flathead Screws
  • Spring-Loaded Clamps for Easier Set-ups
  • Two 2.5mm Terminal Openings per Post
  • PEEK-Insulated Positive Post
  • Single or Dual Configurations
  • Dual Four-Airslots Bottom Airflow - Fully Adjustable
  • Raised Dual Internal Airtubes - Direct-to-Coil Effect
  • 13mm Wide ULTEM Drip Tip
  • 15mm Wide Stout ULTEM Drip Tip
  • 810 Drip Tip Adapter
  • CNC Engravings
  • Silver-Plated 510 Connection


  • 1 The Sherman RTA
  • 1 810 ULTEM Widebore Drip Tip
  • 1 Replacement 4mL ULTEM Glass Section
  • 1 Chimney Extension
  • Spare Parts & 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, RTA, 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.