Air Compressor Oil Level Indicator Sight Glass M36 x 1.5 mm Liquid Level Window for Oil Monitoring and Maintenance - Durable Metal Casing : Constructed from robust organic glass, this product offers a lightweight design without compromising on bending strength and overall performance. - Transparent Clear Glass : The high clarity of the organic glass allows for easy and accurate reading of the oil level within the sight glass, enabling quick assessments of your equipment's condition. - Effective Sealing : Featuring a male thread with an O-ring around the perimeter, this product ensures straightforward installation and excellent sealing against oil, corrosion, and oxidation. Experience reliable sealing performance that minimizes leaks. - Versatile Applications : Ideal for monitoring oil levels in various systems, including CNC machines, air compressors, hydraulic systems, speed reducers, and other mechanical equipment. This sight glass is essential for maintaining optimal performance across multiple applications. - Compatibility and Performance : Designed to fit seamlessly with different machinery, this sight glass enhances operational efficiency by providing clear visibility and reliable sealing, ensuring that your equipment runs smoothly. This product is an indispensable tool for professionals seeking to ensure the longevity and reliability of their machinery.