If you're unsure which gazebo you have, the best way to find out is by looking at the model number. This can usually be found on a plaque or tag on the inside of one of the posts or on the underside of the canopy. Once you have the model number, you can use it to look up more information about your specific gazebo online.
If you don't have a model number, or if you can't find it, there are still a few things you can check to try and identify your gazebo. First, take a look at the overall shape and size. Gazebos come in all sorts of shapes and sizes, so this can be helpful in narrowing down your options. Next, look at any features that are unique to your gazebo, such as special trim work or ornate details. Finally, check for any identifying marks that may be present, such as a manufacturer's logo or name.
With these tips in mind, you should be able to narrow down which gazebo you have and get more information about it.