The 63PT-4X from BrassCraft is a 1/4” Compression Insert, Lead-Free. It's used when installing 1/4" OD plastic tubing in conjunction with 1/4" 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: 1/4" OD (1/8" Nominal/CTS) tubing;
• Max Operating Pressure: 300 psi;
• Material: Lead-Free Brass, approved for potable water use;
• CSA Listed, NSF/ANSI 372.