A Mark IV Amphibian is an early model of British naval oxygen rebreather made by Siebe Gorman. It was arranged like a UBA, but its oxygen cylinder is smaller. It was so called because it could be used for diving, or as an industrial breathing set on land.
This diving-related article is a stub. You can help Wikipedia by expanding it.
Strategi Solo vs Squad di Free Fire: Cara Menang Mudah!
