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.
Take a clear photo with an accurate measurement of your aerator diameter as shown in the picture below, then call us on 1800 268 469 or email the photo to info@alkaway.com.au and we will find the right adaptor for you.