This Compression Pipe Connector is Great for Joining 2 Pipes of Same Diameter, Within Your Compression Piping Systems. It will Create a Secure Compression Bond, Ensuring no Water Leakage. This Connector was Produced with Solid Lead Free Brass, and will Last Long in all Types of Applications, without Rusting and Corroding. Ideal for All Your Commercial and Residential Applications. UNION COUPLING: Joins 2 Pipes Securely within Instrumentation, Hydraulic, and Pneumatic Applications; Works with Aluminum, Plastic, and Copper Tubing. LEAK-FREE: Creates a Secure, Leak Free Seal in All Compression Applications SUPERIOR QUALITY: Highly Durable Brass Construction; Rust Resistant; Corrosion Resistant; Vibration Resistant; Lead Free EASY INSTALLATION; REUSABLE; VERSATILE SPECIFICATIONS: OD. Compression Connections; Temperature -65 Degrees F thru 250 Degrees F @ Max Pressures; Works with All Highcraft Compression Fittings and Connectors