bubbly-effect through inside airtube.
the 1,6" (40mm) round thread connector (standard connector to ) fits our masks with appropriate connection, the tube connection SA2, our tees, connectors and many gas masks
the bottle is 22cm high and the diameter is 87mm

Product safety

Information on the manufacturer:

Hans-Peter Michels
Gartenstrasse 13
36381 Schluechtern
Germany
[email protected]
https://www.studiogum.com
Safety instructions and warnings