Eastman 0437318 Flexible Corrugated Stainless Steel Water Heater Connector Pair, 3/4-inch FIP x 3/4-inch Push-Fit, Red and Blue Pair, 18-Inch Length DIMENSIONS: 18-Inch Line Length, 3/4-inch FIP x 3/4-inch Push-Fit; Push-fit designed for use with copper, CPVC, or PEX pipe. No soldering required! MATERIAL: Made with high-quality epoxy-coated stainless steel FEATURE: Nickel-plated brass nuts DESIGN: Deep corrugations provide structural support against crushing, kinking and cracking EASY INSTALLATION: The package includes 1 red and 1 blue water heater connectors for easy installation