2Pcs 20mm Male Thread Dia Replacing Parts Liquid Sight Glass for Air Compressor

Descriptions:
Used widely to check the oil level of the pump in the air compressor.
The sealing is achieved with an O-ring on the periphery.
The outside diameter of these oil level sight glasses with recessed hex design.

• Net Weight: 11g; Package Content: 2 x Oil Level Sight Glass
• Main Color: Yellow, Clear
• Thread Dia: 20mm/0.79"
• Size: 25.8 x 18.8mm/1.02" x 0.74"(D.Max*H)