Square head plug for sealing off a female-threaded fitting or pipe opening.

• 4" MIP (male iron pipe) threads
• Black malleable iron construction
• Square head for easy installation
• 150-lb class malleable fitting
• Relative softness of the metal helps provide a sure seal
• Generally used for lubricant, oil, grease, liquefied petroleum (LP) gas, natural gases, steam and diesel
• Threaded ends comply with ANSI/ASME B1.20.1

This fitting is not designed for potable water applications.