3/8 inchOD Brass Insert for Poly Tube

BrassCraft 63PT-6X Brass Insert – 3/8 inch OD for Polyethylene Tubing

The BrassCraft 63PT-6X is a precision-machined brass insert designed for use with 3/8 inch OD polyethylene and other flexible plastic tubing in compression connections. This insert is used to reinforce the tubing at the compression joint, helping maintain shape and prevent collapse during tightening.

Manufactured from low-lead compliant brass, the 63PT-6X meets requirements for potable water applications and is suitable for a range of low-pressure systems. It supports operating pressures up to 125 PSI and temperatures from 40°F to 180°F.

Product Features

• Material: Lead-free brass (compliant with NSF 61-G)
• Outside Diameter: 3/8 inch
• Length: 0.56 inch
• Application: Reinforcement insert for use with polyethylene or similar tubing
• End Style: Tube insert (fits inside tubing to support compression fittings)

Specifications

• Pressure Rating: Up to 125 PSI
• Temperature Range: 40°F to 180°F
• Use: Cold and hot water systems, suitable for potable water lines
• Installation: Insert into tubing prior to compression nut and ferrule assembly

This component is intended for use by plumbing professionals or trained personnel. Proper installation requires correct tubing preparation and compression fitting technique to ensure long-term sealing and performance. Not for use with metal tubing.