They were recommended by a pool owner. I used them for an electrical timer replacement . They do great work; however, they are one of the most expensive. They are high-end, but you never worry about their work. Mark Sorensen has always been available to answer our questions, and he is a great guy to work with when we have pool issues. If he doesn't know the answer, he will get it for us. He is just the best POC. Yes I would recommend.