Chlorine

In The Swim Opening Kit and Chlorine Bundle - Pre-Measured Opening Kit for Easy Use - 50 Pound Bucket of 3-Inch Stabilized Chlorine Tablets - for Inground and Above Ground Pools Up to 35,000 Gallons

In The Swim Opening Kit and Chlorine Bundle - Pre-Measured Opening Kit for Easy Use - 25 Pound Bucket of 3-Inch Stabilized Chlorine Tablets - Inground and Above Ground Pools Up to 15,000 Gallons

Non-Chlorine 4 in 1 Shock, for Pools and Spas. Fast Acting, Quick Dissolving, Shock, Sanitizes, Clarifies, Eliminates Algae & Prevents Stains. Reduces Harsh Chlorine Usage (25 lb)

HTH 42055 25lb & 42052W 5lb Swimming Pool Chlorine Tabs Advanced with Clarifier & Algaecide, Sanitizer for Clear Water