Secure and seal your plumbing system with our heavy-duty 3/4" Cast Bronze Pipe Cap. Engineered for maximum durability in harsh environments, this female National Pipe Thread (NPT) cap provides a permanent or temporary water-tight seal for pipe ends.

Cast from high-quality, corrosion-resistant bronze alloy, it is specifically designed to withstand the punishing conditions of marine plumbing, commercial drainage, and industrial fluid systems. Unlike standard brass, our marine-grade bronze offers superior resistance to dezincification and galvanic corrosion, making it the industry standard for below-the-waterline applications and saltwater exposure.

Key Features

• Premium Cast Bronze Construction: Exceptional tensile strength and natural resistance to saltwater pitting and bio-fouling.

• Precision-Machined Threads: 3/4" Female NPT threads ensure a smooth, tight, and leak-free connection with standard male pipes or fittings.

• Corrosion Resistance: Highly resistant to dezincification, ensuring structural integrity in harsh environments where brass or iron would fail.

• Ergonomic Hex/Square Head: Features a robust exterior grip pattern for easy installation and high-torque tightening with standard wrenches.

• Versatile Application: Ideal for marine thru-hulls, livewells, engine cooling lines, plumbing lines, and industrial chemical processing.

Technical Specifications