MagnaSpa benefits: Silkier more comfortable water Soothing to sensitive skin types Relaxes and rejuvenates Available in 3Kg bags One bag is suitable for 1000L Compatible with any sanitising/oxidising agent Developed specifically for spa applications, MagnaSpa features a uniquely formulated blend of Magnesium and Potassium. MagnaPool minerals have been widely used in swimming pools across the world, and now is available specifically for use in spa water. Magna Spa minerals have a soothing and detoxifying effect on the skin. These minerals are present in naturally formed hot spring water and spa resorts around the globe. You will still be required to use any spa sanitiser. MagnaSpa is compatible with all sanitising agents. Whereas MagnaPool uses the hydroxinator to create the sanitisers necessary for your pool, MagnaSpa does not use the Hydroxinator, so it is necessary to add them. Compatible with Nature 2 Spa sticks.