【Premium Material】RV Faucet Adapter is made of high grade solid brass,which is more durable than iron and iron galvanized pipe fittings. It has excellent performance at corrosion and rust resistance and can be used in wet environments without damage..【Standard Size】The 1/2 to 3/8 compression fitting come with 2 pieces, it has a 3/8” male threaded on one end and a 1/2” male threaded on the other for connecting a male to male pipes or fittings with different diameters..【Super Durable】Our 1/2 to 3/8 reducer is 0.7’’ thicker than others, we thicken the premium solid brass to avoid cracking. So it can withstand long periods of wear and tear, has a long service life..【Widely Used】Our faucet supply line adapter meet the same standards for commercial and residential plumbing applications. It can apply to connect various pipes, especially for RV, camper and kitchen faucet hose, widely used in your life..【Lead Free】The plumbing adapters are committed to providing quality products, the material of high-quality brass that is lead-free. So the compression fittings is safe for potable water lines. It is no harm to your health.