Ensure a secure, long-lasting connection with the Legend Valve stainless steel CTS compression insert stiffener. Designed for use with copper tube size polyethylene tubing, this insert provides internal reinforcement to prevent tube collapse during compression installation. Made from corrosion-resistant stainless steel, it delivers exceptional strength and durability for both residential and commercial plumbing applications. Easy to install and built to last, it is the reliable choice for maintaining a leak-free connection.