Sight gauges allow the user to see how much oil is left in the tank. They are available as simple tubes with a ball float, or a modern ultrasonic reader with a digital display.
Oil, Gas or Water 4PSi outlet (adjustable) 3/8? connections ...
400 x 300 x 200mm
500 x 400 x 200mm
600 x 400 x 230mm
800 x 600 x 300mm