Tommy Docks Superior Galvanized Steel Dock Pipe: Superior Rust Resistance: 50% more protection than standard pipes, with a unique galvanized coating for both interior and exterior. Lightweight Yet Strong: 30% lighter than competitors, ensuring easy installation without sacrificing durability. Enhanced Stability: High-tensile strength for increased dock longevity and stability. Optimal Dimensions: 1.66-inch outer diameter for seamless accessory integration. Freshwater Compatibility: Specifically designed for freshwater use; not suitable for saltwater or brackish environments. Robust Construction: .109-inch wall thickness (12-gauge steel equivalent) for enduring performance. Customizable: Compatible with a variety of accessories such as brackets, footpads, and augers for personalized dock setups. Product Number: 4': A-50015 - UPC: 7247855001586': A-50017 - UPC: 7247855001728': A-50019 - UPC: 724785500196