AGS brass drain petcocks serve as small, manually operated valves to drain fluids and air from low-pressure systems, such as radiators, overflow tanks, and compressed air systems. They feature a brass construction for corrosion resistance, a hand-tightened, leak-proof metal-to-metal seal, and a simple design that allows for easy operation and maintenance by allowing users to quickly open a valve to release unwanted fluids or moisture. AGS drain petcocks are available in standard thread sizes for compatibility with many applications. Select the petcock fittings for your application needs.