★ Wide Applications --- The sight glass plug is a kind of liquid indicator used in tanks, air compressors, pumps, piping systems, automotive industries, lab equipment, bearing housing and mixers etc. The sight glass gauge has a good view port for visual Inspection of water, oil.
★ Clear Glass --- The actual liquid level position screw oil in the oil tank can be placed on the tank sight glass to see, to judge from the outside to run defenders screw oil meets the operating condition.
★ Aluminum --- The main body is made of aluminum alloy, which is not easy to wear and burst compared to plastic material. It can work in high-temperature environments.
★ Useful Tips --- Please confirm the oil level sight glass size before your choosing.