No, these pool fences cannot be swapped. The structure and size of each type are the reasons. The fences for the above-ground pools are only a few feet high, which would not be enough for the in-ground pools. Those are four-feet in height, which would be too much for the above-ground pools. The hardware and attachments for the above-ground pool are for the vertical supports around the sides. These could not be attached anywhere to an in-ground pool. These two types of fences are not exchangeable in the least.