This adaptor will connect 1/4″BSP Male to 1/8″BSP Female unions. Generally used to reduce 1/4″BSP Male Compressor outlets to fit 1/8″BSP Airbrush hoses.
We recommend the use of PTFE tape or Thread Locking Glue when using these adaptors to ensure a leak free joint.
1/8″ BSP (British Standard Pipe) measures approx 9mm diameter.
1/4″ BSP (British Standard Pipe) measures approx 12mm diameter.