Tube Connector SA1

HEAVY RUBBER by STUDIO GUM

with 1,6" (40mm) outer thread (standard connection of most gas masks).
The sleeve fits our corrugated tubes LS, the breathing bag AB, the ventilation bag BB, and on accessories from other manufacturers with 0,86" (22mm) diameter.
The 1,6" (40mm) standard thread fits on our masks with the appropriate connection, the tube connectior SA2, our tees, connectors and on many gas masks.