RLECS 4pcs Air Compressor Sight Glass For Air Compressor Gearbox Pump Tank (1/2" NPT), Aluminum Alloy Hex Oil Sight Glass Window Oil Liquid Level Gauge

Material: The oil level sight glass is made of solid aluminum alloy Package Contents: 4 x Oil Level Gauge Sight Glasses.

• Package Contents: 4 x Oil Level Gauge Sight Glasses.
• Thread Diameter: G1/2 (Approx. 21mm/0.83").
• Good visibility and tightness: The 1/2 NPT compressor oil sight glass enables the user to observe the liquid level in the container, clearly seeing the color, clarity and stagnant water or other contaminants of the oil. The oil tank sight glass adopts NPT thread, which is a tapered thread, with strong tightening force and no need to worry about leakage.
• DURABLE MATERIALS - Air compressor fittings are made of aluminum alloy, which is rust-proof and wear-resistant, and can be used safely in high temperature. The lens adopts high-definition glass, which is not easy to change color and has high definition.
• Wide range of applications - oil level gauge sight glasses are suitable for liquid level display and observation devices in refrigeration equipment, ships, pressure vessels and machinery industries. Widely used to check the oil level of pumps in air compressors.