Manufactured from moulded components and a one piece float guide, this mechanically operated liquid tank level contents gauge is mounted vertically onto the top of the tank using a 1.5andquot; female threaded connection. As the liquid in the tank changes level, the float follows the change and using a magnetic coupling, it transfers that motion to the level indicator. The gauge is also fitted with a seal to reduce the risk of leakage of tank contents as well as stop water ingress.