Sherman 25 RTA - Asylum Mods

Asylum Mods

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Introducing the Sherman 25 RTA. The demand for this version has been huge.

Bringing the expected exceptional flavour of the original with the dual clamp system and balanced airflow ratio but also showcasing some new features.


  • Removable airflow control rings
  • Upgraded airflow system
  • Removable deck while juice remains in the tank
  • Glass tanks as standard


Same sleek look but a new experience at the versatile 25mm size.