3/8tube brass compression to 3/8 BSP male thread - Sola Exchange

Brass Fitting 3/8 BSP to 3/8M Compression NPT

Flomasta Compression Adapting Male Coupler 10mm x 3/8 - Screwfix

PlumbShop Brass Compression Union Tube, 5/16-in OD, 1-pk

Compression Bulkhead Coupling Fitting 3/8

3/8 brass Compression to 3/8 BSP male thread elbow - Sola Exchange

LASCO 17-6835 3/8-Inch Compression by 3/8-Inch Male

Metric to Imperial Pipe Conversion - Colglo

Instrumentation Tubing and Their Connections, PDF

Wholesale Tube Compression Fittings-China Wholesale Tube