Straight Nylon Gages can be used on oil bearings, gear boxes, crank cases, transformers, switches, or any application requiring visual indication of liquid flow. The leak proof construction, large vent hole and unrestricted passages permit fast and accurate liquid level response.","This liquid level gage features a round Trogamid nylon sight that is 11\/16\" in diameter. The sight is extremely durable and allows viewing from all angles. A protected vent hole in the cap reduces the possibility of dust, dirt, or moisture getting inside the gage. The gage uses only atmospheric pressure. Leak-tight construction is achieved with Buna-N seals. The vent cap and body are made of aluminum alloy. The unit tolerates temperatures up to 205° F. The square shank with pipe thread screws vertically into a tapped hole on the top of a reservoir.","Dimensions:","A Sight Opening 3 1\/2\"","B Total Height 5 11\/32\"","C Length of Mounting Thread 5\/8