Stainless steel Oil level Sight glass, oil sight gauge, oil sight gage, 

oil level indicator, liquid sight glass, sight window, view ports, male thread sight glasses, 

domed sight glass plug 
Material 
Body:   SS304, SS304L, SS316, SUS316L SUS304, SUS304L, SUS316, SUS316L 
O-Ring: Viton and NBR 
Glass:  Natural Glass 
Glass Thickness: 2mm to 5 mm 
Glass Type: General Glass, Tempered Glass and Borosilicate Glass  
Resist Temperature Range:-30 Centigrade to 120 Centigrade.

PressureRange:  5-10 Bar or 0.5MPa to 1 MPa.

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

Size:M10X1, M16X1.5,M20X1.5, ,M27X1.5,M33X1.5, 
G 3/8,G 1/2,G 3/4,G 1    NPT 3/8, NPT 1/2,NPT 3/4,NPT 1

MOQ: 2000 Pcs each size

Delivery time: 20 days.

Usage: Pump, Thin-wall container, Radiator,Hydraulicreservoir, receivers,Gearboxes, 

Speed Reducer, Compressor and Power Transmission.