The PT Coupling 10122CSSS features a 1.688-inch inner diameter and is constructed from durable stainless steel, making it ideal for fluid transfer applications. This coupling is designed to withstand harsh conditions, offering excellent corrosion resistance and longevity. It meets industry standards for safety and reliability, ensuring a secure connection in various settings. The 1.688 ID size allows for compatibility with a range of hoses and fittings, making it a versatile option for industrial and commercial use.