ChillWaves Brass In-Line Spring Check Valve 3/4" NPT Female Thread, One-Way Non-return Vertical Check Valve for Backflow Prevention(2-PACK)

["SIZE - 3/4\" NPT Female Thread Check Valve. Note, NPT thread is the nominal pipe size and does not represent the actual diameter, please refer to the dimension drawing for specific diameter.","MATERIAL - Made of high-quality brass, with strong wear and corrosion resistance, high compressive strength, durability, low magnetic permeability and high temperature ductility，with stainless steel spring, vertical and horizontal installation.","USE - Used to prevent backflow of the medium in the pipeline, through the medium itself to flow and thus automatically open and close the valve flap, only allows the medium to flow in one direction, it is suitable for gases, water, oil.","WORKING PRESSURE & TEMPERATURE - 230PSI maximum working pressure, temperature range -4°F to +250°F (-20°C to +121°C)","PRODUCT DESIGN - Can prevent fluid backflow, good sealing, easy to install and disassemble, thickened valve body, inner wall polishing treatment, smooth and not easy to scale, copper stem and copper core to prevent leakage."]