1/8" Female NPT x 1/4" Male NPT Forged Brass Reducing Elbow 5 pack 1200 PSI working pressure, Temperature range of -65°F to 250°F (-53°C to 121°C) PLEASE NOTE, 1/4" NPT MEASURES 0.540", 1/8" NPT MEASURES 0.405" OUTSIDE THREAD DIAMETER IN LINEAR INCHES Backed by EDGE Industrial full manufacturers warranty NOT DEEMED LEAD FREE. NOT FOR POTABLE WATER 1/8" Female NPT x 1/4" Male NPT 90° Forged Brass Reducing Elbow Pipe Fitting. Used for a variety of applications, not limited to grease, fuels, refrigeration, water, oil gas, and hydraulic systems. Working pressure of 1200 PSI. Temperature range of -65°F to 250°F (-53°C to 121°C). Meets the standards of ASA, ASME and SAE. Not deemed lead free. Not for use with potable water. Please Note: NPT Thread size is NOT determined by its outside thread diameter in inches. Please review our attached NPT sizing chart to cross reference NPT thread size to linear inches