This 4" black malleable iron pipe cap threads onto the end of a pipe to seal it off, stopping the flow of water, gas, or air. Made from ASTM A197 malleable iron for strength and durability, with female NPT threads for a secure, leak-free connection.

• Class 150 rated - pressure tested to 150 PSI
• Female NPT threads fit standard 4" threaded pipe
• Black finish provides a clean, professional look and basic corrosion resistance for indoor and sheltered applications.
• Complies with ASTM A197, ANSI B16.3, B16.14, and B1.20.1
• Suitable for plumbing, HVAC, gas, and industrial piping