When you're trying to relax in your hot tub, the last thing you wanna see is cloudy water. SeaKlear's Natural Clarifier is a great thing to have on hand so that the water in your pool & spa is clear & sparkling. The Natural clarifier clears cloudy water and helps eliminate oil, scum, and excess metals; which makes cleaning the filters much easier. It's compatible with all sanitizers, so no worries there. It's made in the United States and has been trusted by spa & hot tub owners to keep their water clean for over 15 years! For your first use, use 1 fluid oz. of Natural Clarifier per 500 gallons; no mixing required. If your water is especially cloudy, double or triple the dose you use. Check out PoguePoolSpa.com for more products to help keep your spa sqeuaky clean.