Brass Oil level indicator/oil level gauge with glass tube

Housing: Brass Tube .

Tube: Real glass tube.

O-Ring and flat gaskets: NBR Rubber.

Thread szie: M10x1, M12x1.5, M14x1.5, M16x1.5, G1/4" , G3/8" , G1/2" , NPT1/4, NPT3/8, NPT1/2"

Temperature resistant: -20'C to 120 'C. / 0'F to 260 'F

High of two bolt: 80mm to 600mm

Usage:  Pump, Thin-wall container, Radiator, Hydraulic reservoir, receivers, Gearboxes,
Speed Reducer, Compressor and Power Transmission.