The 4 x 7  Extra Heavy Nipple is a high-performance, heavy-duty pipe fitting designed to withstand extreme pressure, temperature, and demanding industrial conditions. Constructed from durable, corrosion-resistant materials, it ensures long-lasting reliability in plumbing, pneumatic, hydraulic, and mechanical systems. Featuring Male Pipe Thread (MPT) connections on both ends, this fitting provides a secure, leak-proof connection, making it ideal for high-pressure fluid and gas transfer in residential, commercial, and industrial applications.