• 304 stainless steel insert stiffener for 3/4" CTS (Copper Tube Size) plastic tubing
• Provides 360-degree internal support to prevent thin-wall tubing from collapsing under compression
• Required when using CTS compression fittings with polyethylene (PE), PEX, or polybutylene (PB) tubing
• Not required with rigid copper tubing or CPVC
• Chamfered end guides smoothly into pipe; flange stops at pipe end for proper positioning
• Corrosion-resistant stainless steel construction for long service life
• Sold individually

FOR CALIFORNIA SHOPPERS

Hello Californians! Your government wants us to show you the following message:

• ⚠  WARNING: This product can expose you to lead a chemical known to the State of California to cause cancer and reproductive harm. www.P65Warnings.ca.gov