Aignep Universal Compression Fittings

Tube ID B: 1.5 mm Tube OD A: 2.7 mm

B Tube ID: 3 mm A Tube OD: 4 mm

Tube OD: 10 mm Thread: 3/8″ BSPT

Tube OD: 6 mm Thread: 1/4″ BSPT