What's the difference between new or used? About half the cost. Look, if you can turn a screwdriver, adjust a crescent wrench, and turn a ball valve or two off you should save yourself a service call fee (usually starting at 60 bucks just to ring your door bell) And do it yourself, keep your cash, nothing wrong with refurbished or used parts, parts are just parts when they are installed they sit under your spa and nobody really knows or cares as long as it works. At least have the pro diagnose it for you, get the tech to write a proposal with the part needed to repair your spa, then call me, Hi, My name is Adam I started burgin industries with a friend about two years ago. We sell used spa and pool parts, they all come with a 90 day warranty, and have been completely Cleaned and fully tested.