About Copperline Plumbing Foundry
Precision-engineered brass fittings, shutoff valves, and heating supplies tested to extreme tolerances.
Master Foundry Engineering, Built to Endure
At Copperline Plumbing Foundry, we forge precision brass fittings, shutoff valves, and heating supplies engineered to outperform standard hardware. Every casting undergoes pressure testing and quality certification before dispatch.
Our goal is simple: provide plumbers, contractors, and homeowners with certified, zero-leak plumbing components at direct foundry pricing with fast nationwide shipping.

Built for Durability & Performance
Industrial-grade engineering designed to prevent leaks and endure demanding conditions.


1,200 PSI Pressure Tested
Every valve and fitting is factory hydro-tested to ensure zero leaks under heavy pressure.
Certified Lead-Free Brass
Forged from solid brass alloy fully compliant with safe drinking water standards.
Thermal Expansion Guard
Rated for up to 250°F continuous heat in boiler manifolds and water heater lines.