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Use: apply directly to pool water as needed; Test pool water and shock weekly to keep free available chlorine levels between 1 and 4ppm.




Compatibility: effective for all swimming pool types including pools with liners and Gunite pools, and saltwater pool systems. Features: increases chlorine levels; kills and prevents bacteria and algae; Keeps water clear; See results in 24 hours; 1 bag treats 13, 500 gallons; Won’t fade vinyl pool liners.

You're all clear with hth: for best results, use with HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly.
1. Ultima
#ad
Ultima 40542-12 T.K.O. Pool Shock, 12-Pack
#adUltima #ad - Package dimensions: 25. 603 l x 27. 203h x26. 009wcentimeters. Package weight : 5. 829 kilograms. Model number: 40542-12. Country of Origin: United States.More information #ad
Brand | Ultima #ad |
Manufacturer | Ultima #ad |
Height | 7 Inches |
Length | 12 Inches |
Weight | 12 Pounds |
Width | 12 Inches |
Part Number | 40542-12 |
Model | 40542-12 |
More information #ad
2. Ultima
#ad
1-Pound, Ultima 40542-24 24-Pack T.K.O. Chlorinating Shock Treatment for Swimming Pools
#adUltima #ad - 73% calcium Hypochlorite. Brand: Ultima. Premium super-fast acting chlorine boost takes cloudy water and turns it clear. Item weight: 24. 0 lbs.More information #ad
Brand | Ultima #ad |
Manufacturer | Robelle Industries #ad |
Height | 14 Inches |
Length | 14 Inches |
Weight | 24 Pounds |
Width | 14 Inches |
Part Number | 40542-24 |
Model | 40542-24 |
More information #ad
3. Ultima
#ad
1-Pound, Ultima 40542 T.K.O. Chlorinating Shock Treatment for Swimming Pools
#adUltima #ad - 73% calcium Hypochlorite. Premium super-fast acting chlorine boost takes cloudy water and turns it clear. Item weight: 1. 0 lbs. Brand: Ultima.More information #ad
Brand | Ultima #ad |
Manufacturer | Robelle Industries #ad |
Height | 2 Inches |
Length | 12 Inches |
Weight | 14 Pounds |
Width | 3 Inches |
Part Number | 40542 |
Model | 40542 |
More information #ad
4. Ultima
#ad
Ultima 40542-06 T.K.O. Pool Shock, 6-Pack
#adUltima #ad - 73% calcium hypochlorite. Premium super-fast acting chlorine boost takes cloudy water and turns it clear. Extremely effective spring start-up shock treatment. Brand: Ultima.More information #ad
Brand | Ultima #ad |
Manufacturer | Ultima #ad |
Height | 6 Inches |
Length | 12 Inches |
Weight | 6 Pounds |
Width | 12 Inches |
Part Number | 40542-06 |
Model | 40542-06 |
More information #ad
5. HTH
#ad
HTH 52123 Super Shock Treatment Swimming Pool Chlorine Cleaner, 1 lb Pack of 15
#adHTH #ad - Compatibility: effective for all swimming pool types including pools with liners and Gunite pools, and saltwater pool systems. Features: increases chlorine levels; kills and prevents bacteria and algae; Keeps water clear; See results in 24 hours; 1 bag treats 13, 500 gallons; Won’t fade vinyl pool liners.Use: apply directly to pool water as needed; Test pool water and shock weekly to keep free available chlorine levels between 1 and 4ppm.
More information #ad
Includes: 15 1-lb bags of shock treatment for your swimming pool. Benefits: increases the chlorine level in swimming pools to kill bacteria and algae to keep your pool water clear and ready for fun all season long.Brand | HTH #ad |
Manufacturer | HTH #ad |
Height | 9.5 Inches |
Length | 4.13 Inches |
Weight | 1 Pounds |
Width | 20.5 Inches |
Part Number | 52123 |
Model | 52123 |
More information #ad
6. DryTec
#ad
1-Pound, DryTec 1-1901-24 Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 24-Pack
#adDryTec #ad - Fast-acting quick-Dissolving Swimming Pool Sanitizer. Kills bacteria, controls algae, and destroys organic contaminants in pools. 24 bags 1-pound each. 68% calcium hypochlorite. Recommended dosage: 1 pound per 10, 000 gallons of water.More information #ad
Brand | DryTec #ad |
Manufacturer | Robelle Industries #ad |
Height | 6 Inches |
Length | 24 Inches |
Weight | 24 Pounds |
Width | 12 Inches |
Part Number | 1-1901--24 |
Model | 1-1901--24 |
More information #ad
7. In The Swim
#ad
In The Swim Chlorine Shock Granules for Sanitizing Swimming Pools – 56% Available Chlorine – Dichlor – 40 Pound Bucket
#adIn The Swim #ad - In the swim's granular chlorine is ideal for use in swimming pools, spas, fountains and water features. Powerful sanitizing powder that destroys bacteria, breaks down contaminants and kills algae.More information #ad
Contains premium-quality 56% available stabilized chlorine. Calcium-free formula keeps hard-water pools sparkling clean and crystal clear. 99% sodium dichloro-S-Triazinetrione Dihydrate.Brand | In The Swim #ad |
Manufacturer | In The Swim #ad |
Height | 13.2 Inches |
Length | 16 Inches |
Weight | 44 Pounds |
Width | 13.9 Inches |
Part Number | C4045 |
Model | C4045 |
More information #ad
8. LEISURE POOL & SPA SUPPLY INC. LP
#ad
55 Gallon Drums, Bulk Liquid Chlorine 12.5-15% Sodium Hypochlorite 4
#adLEISURE POOL & SPA SUPPLY INC. LP #ad - Product does Not Cloud Pool. Perfect for pressure Washing, Sanitation & Other Related Uses. Ready to use, no mixing Required - Great Choice for Pool Closings.More information #ad
12. 5% commercial grade strength liquid chlorine - USA Made - EPA Registration No. Premium swimming pool shock - NSF/ANSI 60 Certified. Ships ltl common Carrier with Lift-Gate Service. 55852-3.Brand | LEISURE POOL & SPA SUPPLY INC. LP #ad |
Manufacturer | Champion Packaging & Distribution #ad |
Height | 48 Inches |
Length | 48 Inches |
Weight | 2450 Pounds |
Width | 40 Inches |
Part Number | 90255 |
Model | 90255 |
More information #ad
9. HTH
#ad
1 lb Pack of 12, HTH 52026 Super Shock Treatment Swimming Pool Chlorine Cleaner
#adHTH #ad - Benefits: increases the chlorine level in swimming pools to kill bacteria and algae to keep your pool water clear and ready for fun all season long.Compatibility: effective for all swimming pool types including pools with liners and Gunite pools, and saltwater pool systems. Features: increases chlorine levels; kills and prevents bacteria and algae; Keeps water clear; See results in 24 hours; 1 bag treats 13, 500 gallons; Won’t fade vinyl pool liners.
More information #ad
Includes: twelve 1-lb bags of shock treatment for your swimming pool. Use: apply directly to pool water as needed; Test pool water and shock weekly to keep free available chlorine levels between 1 and 4ppm.Brand | HTH #ad |
Manufacturer | Innovative Water Care #ad |
Height | 10 Inches |
Length | 7 Inches |
Weight | 12 Pounds |
Width | 10.5 Inches |
Part Number | 52026 |
Model | 52026 |
More information #ad
10. HTH
#ad
1 lb Pack of 12, HTH Pool Care Shock Advanced, Cal Hypo Formula, Swimming Pool Chemical Prevents Bacteria & Algae
#adHTH #ad - Compatible with all swimming pools: This product is great for all pool types including vinyl-lined pools and saltwater systems. Visibly brilliant sparkle: this Cal Hypo based formula sanitizes without adding cyanuric acid CYA to prevent overstabilization or chlorine lock.You're all clear with hth: for best results, use with HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly.
More information #ad
Benefits: stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills bacteria and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity. Features: multi-functional shock treatment for weekly use to solve 90% of pool water problems within 24 hours and restore crystal clarity.Brand | HTH #ad |
Manufacturer | Innovative Water Care #ad |
Height | 14.1 Inches |
Length | 10.6 Inches |
Width | 7.5 Inches |
Part Number | 52037 |
Model | 52037 |
More information #ad