The MK11 Evo/R105 is a travel friendly, affordable regulator with an enhanced version of the MK11 first stage. In this version, four low pressure ports deliver the same high airflow, the redesigned high pressure ports provide appreciated hose routing options, and the metal fins design improves thermal exchange. 

COMPACT CASING

Includes a durable, anti-scratch front cover and reliable metal barrel 
inside.

HI-FLOW MOUTHPIECE

Improves airflow as well as mouth comfort, fitting all mouth sizes.