BrassCraft® compression male reducing Adapter is machined from brass. Compression fittings are ideal for use in plumbing, instrumentation, hydraulic and pneumatic systems (gasoline, grease, oil, potable and non-potable water, vacuum and air lines). Can be used to install copper, aluminum or plastic tubing. Not recommended for use with steel tubing.

BrassCraft® Tube Reducing Adapter, Series: 68 Series, Fitting/Connector Type: Adapter, 5/8 x 3/8 in Nominal, Compression x MNPT, 0.035 in Thickness, 13/16 in Hex, 150 psi, -65 to 250 deg F, Brass, Rough, 0.46 in ID, Domestic

• Do not require any flaring, soldering or other type of tubing preparation
• Available in a broad range of sizes and styles
• Manufactured from low lead compliant brass
• For use with potable water, many different types of instrumentation applications, hydraulic and pneumatic systems
• Designed to be used with aluminum, copper and plastic tubing, not for use with steel tubing
• Warning do not use compression fittings for gas connections of any kind
• Plastic tubing requires 63PT insert and 60PT sleeve

• Instruction/Installation Manual https://www.hirsch.com//ASSETS/DOCUMENTS/ITEMS/EN/BrassCraft_96_Manual.pdf