Tank breather adapter is a simple adapter. It can turn spin-on filter elements into great big tank breathers. It provides better filtration of air entering larger hydraulic tanks, plus much longer filter life. These adapters have straight-threads on one end to attach to the filter element, and NPT threads on the other end to go into a half-coupling welded to the tank top.
Breather Tank is used to vent a dry sump tank, rear end, or any other application where a breather catch tank is required. It comprises a closed reservoir above the container but having a conduit which depends into the container and has an opening which determines liquid level in the container.