LSB - DOME SHAPED OIL LEVEL GLASSES -Dome shaped transparent level glasses, enabling oil level to be read from any angle -Made from transparent polyamide TROGAMID T which provides good mechanical resistance and is impervious to mineral oil, gasoline, lubricants, petroleum, solvents and most chemical agents (please refer to technical table, page 57). Avoid contact with alcohol based solutions and antifreeze liquids at high temperatures and hot water over 80 °C -Asbestos-free flat gasket ( optional NBR flat seal on request ). Dimensional stability up to temperature of 100°C -Maximum tightening torque suggested for installation is indicated in the table (Nm)