VERSATILE APPLICATIONS: The pipe adapters provide solution as pipe extension to the shower head, tub spout, spigot water, plumbing line etc, and also these 3/8 Inch to 1/4 Inch reducer adapters can be used with grease, fuels and natural gas, refrigeration, instrumentation and hydraulic systems in low and medium pressure pipe line connections. SAFE TO USE: These brass pipe fittings can withstand rated up to minus 65 degrees F to plus 212 degrees F, 300 PSI and long period of wear and tear. LONG LASTING: Brass 3/8 Inch to 1/4 Inch npt reducer are more resistant than iron and iron galvanized pipe fittings as our plumbing pipe adapters are made of premium solid brass in prevention and protection of fittings against abrasion, corrosion, scratches, dulling and other damage after use. NOTE: This product can expose you to chemicals including lead(1.8%~3.7%), which is not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.