What size aerator do I need?

Typical “Regular” size for a faucet aerator is 15/16″ male threaded or 55/64″ female threaded, while “Junior” size is 13/16″ male threaded or 3/4″ female threaded. Some faucets use a smaller “Tom Thumb®” metric-size aerator, which is M18x1 male threaded or M16x1 female threaded. But wait!Click to see full answer. Hereof, how do you measure a tap aerator?The easiest way to find out the size of the thread in your mixer tap or faucet is to remove the aerator (this is the part that screws off at the end of your tap) and measure the diameter (across the centre) of the thread.Also Know, do I need an aerator on my faucet? By introducing small bubbles to the water, the faucet aerator allows the faucet to run longer while using less water. An aerator is not necessary and may even be counterproductive on some exterior faucets (such as for garden hoses), shower or bathtub faucets, or clothes washer water supply faucets. Also to know, how do I know what size faucet to buy? Bathroom faucets connections are generally standard four inches on center of the outside holes. Any bathroom faucet will fit. If you buy a double handle faucet it will have two pipe connections on the outside. The center hole is for the drain lift rod.Are faucet aerators a standard size?Typical “Regular” size for a faucet aerator is 15/16″ male threaded or 55/64″ female threaded, while “Junior” size is 13/16″ male threaded or 3/4″ female threaded. Before you get out your tape measure, there’s a very easy way to tell what size replacement aerator you’ll need.