Works well with copper,, and CPVC pipe, providing a safe and secure connection, making it a and practical pipe clamping tool These clamps provide a grip without interfering with the functionality of the tubes They fit all standard setups securely and effectively : Simply presses down to create a watertight seal, ensuring that it stays in place for a quick and easy installation Make of, enduring, quick to install, flexible, frosts and resistant Perfectly on standard size 3 / 4inch or 1 / 2inch pipe, ensuring a tight grip and protecting the excellent function of the pipe, Manufacturer: Shurhome