How to Choose a Kitchen Faucet With the Right Kitchen Faucet Thread Size Before buying a new kitchen faucet, it is important to understand the differences between the types and sizes of the threads. The standard size for kitchen faucets in the U.S. is 15/16 inch, and there are also smaller sizes that some manufacturers use. Regardless of the type of faucet you have, you should always choose one with a suitable thread size. In order to find a perfect match, you should do a thorough research and compare prices before making a purchase. You can also look for store coupons or discount deals to save money. Turn off the water supply line The supply line of a kitchen faucet is made up of a copper feed pipe. The copper pipe will have water in it, so it's necessary to turn off the water supply line before connecting the new supply line to the faucet. Once you've hooked up the supply line, you should attach the faucet threads to the copper feed pipe. Make sure to use the appropriate thread size and compression nuts for the new supply line. Once you have the correct thread size, you can then attach the faucet to the water supply pipe. Take note of the size of the pipe You should also take note of the size of the pipe that comes with your faucet. There is a common size for faucet threads: 1/2 inch, 3/4 inch, and 1 inch. These sizes correspond to the inner diameter of the hose you're using. If you're buying a new faucet for an outdoor application, you should also check the ideal thread size in your country. Once you've figured out the size of the thread, you can then look for a suitable Nivito Kitchen Faucet. Lastly, the outlet port of a shutoff valve and a faucet nut are also important. The faucet nut must be compatible with the shutoff valve. If the shutoff valve has a 3/8-inch compression outlet port, you'll need to match the port size of the supply pipe to your faucet. If you have a PEX pipe, you can use a female FPT connector. Otherwise, you'll need a compression connector with a 3/8-inch female thread. The two types of hoses used with faucets have different thread sizes. The 1/2-inch OD fittings are larger than the corresponding 3/8-inch OD fittings. In case you have a larger sink, you'll need to buy a faucet with a bigger thread size to fit it properly. And for smaller sinks, you should get a pulldown faucet. These types of faucets come with pulldown sprayers that fit in one-handle sinks. Use a basin wrench If you're having trouble finding a kitchen faucet with the right thread size, you can always use a basin wrench. These tools have an adjustable jaw and a T-handle on the opposite end. They automatically tighten the faucet nut when they're placed on it. The handle can be turned clockwise or counterclockwise to tighten it properly. If you can't find the right one in your local store, order one online.