Heatresistant technology controlled mineral release technique remains effective in any temperature or usage condition Costefficient solution reducing daily chemical expenses; save time and money with 50 less maintenance Active ingredient zinc and malic acid reduce reduce hot tub maintenance by half Enhanced filtration inert ingredients like zeolites, vitamins for silkysmooth and sparklingclear spa 247 Operation works continuously for spas up to 800 gallons; enjoy crystalclear water without frequent replacements Universal fit designed to fit most hot tubs; 114 filter hole and 6.516 length for effortless installation Sensory experiencing see, smell, feel the difference; freshness, crystal clean hot tub without high levels of heavy chemicals Spa experience transformed enjoy peace of mind with 365 days of pristine spa and less work Yearlong supply 3 mineral sticks provide a full year of continuous use; each stick lasts 4 months Effortless maintenance transform your spa experience; enjoy 12 months of clear water with half the upkeep