1 1/2 Stainless Steel Female Iron Pipe Coupler x Coupler-Type DDThe 1 1 2 Stainless Steel Female Iron Pipe Coupler x Coupler Type DD is a high quality, durable fitting designed to connect two pipes with female iron pipe threads. Made from stainless steel, it ensures excellent corrosion resistance, making it ideal for use in harsh environments. The coupler type DD design provides a reliable, secure connection, offering strength and longevity for a wide range of industrial, hydraulic, and plumbing applications.