The 1″ x 3/8″ 316 Stainless Steel Reducing Coupling (Model SP114) is a high-quality MSS Class 150 pipe fitting constructed from corrosion-resistant 316 stainless steel. Designed with female NPT threads, it provides a secure connection between 1-inch and 3/8-inch pipes, offering reliable performance in water, oil, gas, marine, chemical, food processing, and other industrial piping systems. Engineered to withstand demanding environments, it features ASME B1.20.1 NPT threads for standard compatibility, supports ASME B31 code-compliant systems, and has a pressure rating of 150 PSIG (depending on temperature and size). This coupling also allows for practical adaptation of legacy lines to newer component sizes and facilitates flexible installation in compact or constrained spaces.