You can measure the ground anchor that is in the ground to determine the size. However, if you know the colour of the ground anchor cap, you will immediately know which ground anchor cap you need. This is because the colour of the cap refers to the size of the ground anchor. Does your ground anchor you have a red cap? Then you need another red cap. This also means that a black cap will not fit. Below are the ground anchor caps in our range:
- Black cap, diameter 35 mm > https://www.brabantia.com/uk/groundspike-lid-rotary-o-35-mm-black/
- Red cap, diameter 45 mm > https://www.brabantia.com/uk/groundspike-lid-o-45-mm-red/
- Yellow cap, diameter 50 mm > https://www.brabantia.com/uk/groundspike-lid-o-50-mm-yellow/