JWWINCO 543.2-23-G1-A-SW EN543.2-23-G1 (BSP) Oil Level Sight Glass Plastic Black With Reflector Information EN 543.2 Elesa original design technopolymer plastic fluid level sight glasses. Resistant to solvents, oils, grease and other chemical agents. A moderate torque (see table) is recommended when tightening oil level indicator so as to guarantee optimal tightness without any elastic deformation. Maximum continuous working temperature at 3 Bar pressure: 212°F (100°C). Assembly instruction: For mounting on walls of less than 4 mm thickness please use a GN 543.1 nut Specification Threaded housing Polyamide technopolymer plastic black red Sight window Special transparent polyamide technopolymer plastic Reflector Star-shaped anodized aluminum with central level sight dot Packing ring NBR synthetic rubber Accessory GN 543.1 nuts On request Metric and BSPP threads