This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Diving regulator button gauge. An Aclamp pistontype first stage with button contents gaugse and medium pressure hose en Mark murphy en Mark murphy Original upload log en Divingregulatorbuttongauge bytes Mark murphy An Aclamp pistontype first stage with button contebts gauge and medium pressure hose bytes Mark murphy