ZHONGCHENG-VALVE 304 stainless steel NPT internal thread tee Pipe Fittings .Used for industrial connection of pipes or fittings of different end types, diameters or materials. It is a component used to connect, terminate, control flow and change the direction of pipelines in many different industries. It can be applied to water, air, gas, oil, fuel, refrigeration, meters, etc. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules(NPT thread size is not the actual diameter, it is only the nominal pipe size). TEFLON TAPE:For better sealing, We suggest using teflon tape tape on Pipe fittings or pipes. PRODUCT MATERIAL:The accessories are made of 304 stainless steel, which is durable, corrosion-resistant, has low temperature resistance, high temperature ductility. PLEASE NOTE THAT:NPT thread size does not actual diameter, it is only nominal pipe size. used for industrial connection of pipes. EASY TO USE:The deep thread design makes the accessory better engage with the object to enhance fixation. PLEASE NOTE: 1:When Purchasing Pipe Fittings, Please Consider The Application, As This Will Affect Material Type, Shape, Size And Required Durability. 2:Check The Product Size When Buying To Ensure That It Is Your Required Size. 3:Due To Manual Measurement, Some Errors, Please Understand! 4:Because The Shooting Effect Is Different From The Resolution Of The Display, There May Be Some Color Differences Between The Actual Color And The Effect Shown In The Picture. Please Understand! 5:If You Find Small Scratches On The Product After Purchasing, It Does Not Affect Normal Use. We Apologize For Any Inconvenience Caused!