Sani Marc Summer Smiles 30-07055-18 18kg 1" Summer Smiles Broma Ultra™ Tabs makes sanitizing pool water easy with its premeasured tablets that simply dosing. BROMA ULTRA brominating tablets effectively sanitize and disinfect pool water while also eliminating algae – even during fluctuating pH levels. It’s odourless bromine formula is also gentler on the skin and eyes of bathers than chlorine. A great option for people with allergies or sensitive skin. BROMA ULTRA is sensitive to the sun’s ultraviolet rays; regularly monitoring and adjusting the level of sanitizer in the water is recommended. Daily usage should approximate 20g of BROMA ULTRA per 10,000 L of pool water.