Brilliance Water Clarifier 16 oz Brilliance for Spas Water Clarifier 16oz Contains Bioplex NMF with moisturizers to condition and soften spa water for a relaxing spa experience Add 1/2 oz of Brilliance Water Clarifier per 150 gallons of spa or hot tub water Restores water clarity by assisting the filter in removing tiny particles that can cause clouding Spa and Hot Tub Water Clarifier