3/4 BRASS PLUG

🔧 What it is

• A solid brass pipe plug
• Sized for 3/4" NPT (National Pipe Thread) or sometimes PEX/IPS depending on application
• Screws into a female threaded opening to close and pressure-seal the line

⚙️ What it does

• Blocks off unused pipe openings
• Stops water, air, gas, or fluid flow
• Used for testing, capping, or system isolation
• Can be removed later if the line needs to be reactivated

🧱 Common types

• Hex head plug (most common — tightened with wrench)
• Square head plug (older style, still used in plumbing supply)
• PEX brass plug (used to cap PEX tubing systems during testing or termination)

🏗️ Typical uses

• Plumbing line shutoffs during repairs
• Pressure testing water systems
• Temporarily sealing unused ports on manifolds or valves
• HVAC and hydronic piping systems
• Irrigation or mechanical piping terminations