Frog Jump Start (Case of 12) is a Fast & Easy way to start-up your hot tub. It’s effervescent fizzing action lets you know that it is working! Great for optimizing performance with the Spa Frog System or for freshly filled tubs.The 1.5 oz. packets are simple to use and work for hot tubs up to 500 gallons. For larger tubs, use multiple packets.