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.

Extend the life of vehicles and help prevent costly repairs with sight plugs from Grandmfgcn team. Lube sight checks give a quick visual inspection and show the presence of oil in gear cases, bearing housings, or indicate liquid levels in reservoirs. They are observation windows to check burner flames, gears in motion, relay or switch operation in sealed housing.