The 63PT-10X from BrassCraft is a 5/8” Compression Insert, Lead-Free. It's used when installing 5/8" OD plastic tubing in conjunction with 5/8" OD compression fitting in order to stiffen the pipe and prevent leakages caused by deformation. Made from lead-free brass and approved for potable water applications.

Technical Specifications:

• For use with: 5/8" OD (1/2" Nominal/CTS) tubing;
• Max Operating Pressure: 150 psi;
• Material: Lead-Free Brass, approved for potable water use;
• CSA Listed, NSF/ANSI 372.
• Made in the USA