About this item 1/2" & 3/4" Converter: With 1/2in & 3/4in internal thread converter, both 1/2in & 3/4in faucets are applicable, and the rubber ring on the adapter is to prevent leakage. High quality, precision injection molding, precise specifications, stable performance. Widely used in gardening, balcony, car washing, etc. It is very convenience for your life. If you have any question please email us we will reply you as soon as possible.