Our Paramount rep. just stopped by to show us the new spa packs they are offering for poured concrete spas. I said, hmm, the look like bullfrog spa packs. He said they are. Bullfrog is marketing them exclusively through paramount. You will be able to remove/change them, just like in portable spas. I'm not sure how they will look, especially in Pebble Tec pools. It will be something interesting to follow.