Brasscraft 68-6-6X 3/8 OD  by 3/8-Inch  Male Reducing Adapter Lead-Free, Rough Brass Brass Craft Compression Fittings do not require any flaring, soldering or other type of tubing preparation This products adds a great value This product is manufactured in United States BrassCraft Compression Fittings do not require any flaring, soldering or other type of tubing preparation Manufactured from brass rod For use with potable water, instrumentation, hydraulic and pneumatic systems Designed to be used with aluminum, copper and plastic tubing Not recommended for steel tubing Plastic tubing requires 63PT insert and 60PT sleeve Lead-Free Compliant