Metric BSP Thread Male Brass Oil Level Sight Glass Window Hex Head

M16 To M60 3/8"-1" BSP Male Plastic Oil Level Sight Glass Window Hex Head

M16 To M60 1/4"-2" BSP Male Brass Oil Level Sight Glass Window Hex Head 5 Bar

M10-M27 1/4" 3/8" 1/2" BSP Male Brass Oil Level Sight Glass Window Hex Head

1/4" To 2" BSP NPT Male Aluminum Oil Level Sight Glass Window For Air Compressor

1/2" BSP Male Brass Oil Level Sight Glass Hex Head For Air Compreesor 5 Bar

M10-M60 1/4"-2" BSP Male Brass Oil Level Sight Glass Window Hex Head

3/4" BSP Male Brass Oil Level Sight Glass Hex Head For Air Compreesor 5 Bar