Sight glass, Oil level sight glass, liquid Sight Glass, Oil level indicator, Viewport

Material

Body:   Aluminum, Steel and Brass

O-Ring: Viton and NBR

Glass:  Real Glass

Glass Thickness: 2mm to 5 mm

Glass Type: General Glass, Tempered Glass and Borosilicate Glass 

Resist Temperature Range:-30' to 120'

Size:
M10X1,M12X1.5,M14X1.5,M16X1.5,M20X1.5,M24X1.5,M27X1.5,M42X2,
G 3/8,G 1/2,G 3/4,G 1    NPT 3/8, NPT 1/2,NPT 3/4,NPT 1

Usage:  Pump Gearboxes, Speed Reducer, Compressor and Power Transmission.