4″ Ductile Iron Grooved Coupling – 500 PSI – Orange

The HIGHCRAFT 4″ Grooved Rigid Coupling is a premium-grade fitting engineered for reliable performance in both wet and dry piping systems. Manufactured from high-strength ductile iron (ASTM A536 Grade 65-5-12), this coupling delivers exceptional durability while maintaining flexibility to accommodate minor pipe movement. Every fitting is rigorously tested for compliance with ANSI/AWWA C606 groove dimensions, ensuring a secure, leak-free connection every time.

With a 500 PSI operating pressure rating, this coupling is ideal for municipal water, fire protection, and industrial applications where heavy-duty performance is required. Available in orange paint or hot-dipped galvanized finishes, it resists corrosion in harsh environments. The included EPDM gasket (green stripe) provides a reliable seal across a wide temperature range (-30°F to 230°F), making it suitable for both above-ground and buried installations.