TSC-18 Overlay 9916-100239 GE1 1 PUMP

Fit perfectly. Was very helpfu in description to note that Gekko made products for Atesian spas so it was pretty safe to assume this Gekko product would work. Just had to scroll through a lot of photos to match the light and button layout which was easy. I took a photo with my phone of the part I needed so it was easy to cross reference while scrolling through items with the phone photo handy. Always a challenge to find parts to outdated models. No brainier to match correctly. Had no idea how/where I would've found replacement as original was total toast!! First time shopping at Hot tub Outpost and you now have a loyal customer. Thanks!