Oil level Sight glass, Bulls eye sight glass, Sight glass, oil sight gauge, Circular oil sight glass, oil sight gage, site glass, oil level indicator, liquid sight glass, oil sight window, view ports, male thread sight glass, visual level sight gauge, visual level sight glass, visual level indicator, domed shaped oil sight glass, oil sight plugs

Body material: aluminum, brass, PC, PPMA and steel

Glass:  Real glass 2  mm to 5 mm thickness.

O Ring:  Viton O rings

Size:  M10 to M42, 1/2 inch to 2 inch

Thread Type: NPTF, NPT, UNC, UNF, Metric and BSP (G thread)

Operate Temperature: -20 cent degree to 120 cent degree

Operate Pressure: 5-10 Bar or 0.5MPa to 1 MPa.

MOQ: 2000 Pcs each size

Delivery time: 20 days.

Payment:  T/T

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

Different company have different requirements, OEM Service is welcome.