Durable Construction: Made from glass and metal, ensuring long-lasting performance and reliability for your compressor. Clear Visibility: Features a transparent window devise that allows for easy monitoring of oil levels, helping to maintain optimal compressor performance. Versatile Compatibility: Suitable for a wide range of screw compressors, available in sizes from 40mm to 200mm to meet diverse needs. Easy Installation: devised for quick and hassle-free installation, making it an ideal choice for both professional mechanics and DIY enthusiasts. Essential Maintenance Tool: This oil level gauge is crucial for monitoring oil levels, ensuring your compressor operates efficiently and prolonging its lifespan., Manufacturer: MMBUY