Check the listing for details. ClearView 3 inch Jumbo Chlorine Tabs 25 lb. Color: White, Condition: New. Listed at 219.99 USD. ClearView 3" Jumbo Cleaning Tablets are a slow dissolving, long lasting stabilized chlorinator used to kill bacteria, control algae & protect your pool’s chlorine from sunlight degradation. Product Features: Can be used in a feeder, skimmer or floater 99% Active Ingredient Feed rates will depend upon the feeder size, setting, and model Be sure to follow instructions given with each feeder May last much longer in a floater than in a feeder due to less water agitation Dosage: Use 1 tablet per 8,000 gallons per week or as needed to maintain proper chlorine levels Dosage may vary depending upon water condition, bather load, time of day, and weather conditions Tablets may last up to 2 weeks when used in a skimmer, depending upon the water agitation Circulation run time of 8 – 10 hours