As an Amazon Associate I earn from qualifying purchases.




Dissolves quickly - add 1 oz of this cleaning chemical to your pool for every 5, 000 gallons your pool contains, daily for the best quick water treatment maintenance. This granular chlorine dissolves in a 4-foot column, pool algaecide, meaning less chemical adjustments to be made by you! This pool chlorinator acts as a sanitizer, so there is no need to worry about bleach damage on your pool liner as with chlorine tablets.
Long lasting - dichlor resists uv light, lasting longer than other types of chlorinating supplies due to built in stabilizer for your swimming pool, hot tub, or spa. Fewer chemicals needed - our dichlor is ph neutral, and disinfectant. Clear water for safe swimming - swimming in crystal clear water does not mean your skin has to suffer.

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.


1. unp H
#ad
NAZHUA Zappit 73% Cal Hypo Pool Shock, Calcium Hypochlorite Super Shock 50lb
#adunp H #ad - Fast dissolving granular formula. 70% available chlorine, Pool Shock and Super Chlorinator. Signature required at time of delivery. 1 lb will provide 2ppm of available chlorine in 40, 000 gallon pool. Available in 50lb buckets- 100lb option arrives as two 50lb buckets for no extra charge! .More information #ad
Brand | unp H #ad |
Manufacturer | Axiall #ad |
Height | 12.8 Inches |
Length | 18.8 Inches |
Weight | 50 Pounds |
Width | 12.8 Inches |
Part Number | 8000560 |
Model | 8000560 |
More information #ad
2. In The Swim
#ad
In The Swim Calcium Hypochlorite Chlorine Granular Pool Shock, 50 Pounds
#adIn The Swim #ad - Note: this item cannot be shipped to Alaska or Hawaii item will be removed from your order. Fast-acting calcium hypochlorite Cal-Chlor chlorine granules provide 68% available chlorine for hard-hitting immediate results! Clears cloudy water or dull water appearance.More information #ad
Must pre-dissolve/dilute to prevent bleaching of the liner. Note: a valid phone number is required to ship this item, you must be present to sign for delivery. Non-stabilized formula is ideal for super shocking or everyday use, contains no cyanuric acid. Cal-chlor granules can be used in swimming pools, spas and hot tubs.Brand | In The Swim #ad |
Manufacturer | In The Swim #ad |
Height | 13 Inches |
Length | 21 Inches |
Weight | 50 Pounds |
Width | 13 Inches |
Part Number | 25230 |
Model | 25230 |
More information #ad
3. DryTec
#ad
DryTec 1-1901-24 Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 1-Pound, 24-Pack
#adDryTec #ad - Recommended dosage: 1 pound per 10, 000 gallons of water. Fast-acting quick-Dissolving Swimming Pool Sanitizer. 24 bags 1-pound each. Kills bacteria, controls algae, and destroys organic contaminants in pools. 68% calcium hypochlorite.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
4. Doheny's
#ad
Doheny's Chlorine Super Shock 50 lb. Bulk 2 x 25 lb. Bucket
#adDoheny's #ad - 65% available Chlorine. Powerful chlorine shock treatment that is great for regular maintenance. Main active ingredient is 68% Calcium Hypochlorite Cal-Hypo. Dosage: 1 pound per 10, 000 gallons. Quickly eliminates algae, bacteria, and other harmful contaminants from your pool water.More information #ad
Brand | Doheny's #ad |
Manufacturer | Doheny's #ad |
Weight | 50 Pounds |
More information #ad
5. Rx Clear
#ad
Algaecide, Rx Clear Stabilized Granular Chlorine | One 50-Pound Bucket | Use As Bactericide, and Disinfectant in Swimming Pools and Spas | Fast Dissolving and UV Protected
#adRx Clear #ad - Trusted pool supplies - Rx Clear is the best choice for swimming pool accessories and pool chemicals and supplies. The granular chlorine is 99% sodium diclor making a relaxing swim not as harsh.Dissolves quickly - add 1 oz of this cleaning chemical to your pool for every 5, 000 gallons your pool contains, daily for the best quick water treatment maintenance. This granular chlorine dissolves in a 4-foot column, pool algaecide, meaning less chemical adjustments to be made by you! This pool chlorinator acts as a sanitizer, so there is no need to worry about bleach damage on your pool liner as with chlorine tablets.
More information #ad
Long lasting - dichlor resists uv light, lasting longer than other types of chlorinating supplies due to built in stabilizer for your swimming pool, hot tub, or spa. Fewer chemicals needed - our dichlor is ph neutral, and disinfectant. Clear water for safe swimming - swimming in crystal clear water does not mean your skin has to suffer.
Brand | Rx Clear #ad |
Manufacturer | Rx Clear #ad |
Height | 18 Inches |
Length | 13 Inches |
Weight | 50 Pounds |
Width | 13 Inches |
Part Number | 204046 |
More information #ad
6. HTH
#ad
1 lb Pack of 15, HTH 52123 Super Shock Treatment Swimming Pool Chlorine Cleaner
#adHTH #ad - Includes: 15 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.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.
More information #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.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
7. Septicfit
#ad
6 Tablet Pails, 4 Pail Value Pack, 8.2 lbs, NOT for USE in Swimming Pools, Septicfit Septic Chlorine Tablet
#adSepticfit #ad - Not for use in swimming pools. Resealable Containers. Designed for use in Aerobic Treatment Systems. 4 pail value pack - 6 Tablet Pails. 68% calcium Hypochlorite.More information #ad
Brand | Septicfit #ad |
Manufacturer | Aquafit Chlorination Systems #ad |
Height | 6 inches |
Length | 15 inches |
Weight | 8.2 Pounds |
Width | 15 inches |
Part Number | 92666-03024 |
Model | 92666-03024 |
More information #ad
8. In The Swim
#ad
In The Swim Calcium Hardness Increaser 45 lbs Y7220
#adIn The Swim #ad - Dosage 6 lbs per 10, 000 gallons to raise calcium hardness level about 50 ppm. Increases calcium hardness level. Average 97% Calcium Chloride. Do not pre mix. Prevents aggressive or corrosive water.More information #ad
Brand | In The Swim #ad |
Manufacturer | In The Swim #ad |
Height | 18.6 inches |
Length | 12.5 inches |
Weight | 48 Pounds |
Width | 10.3 inches |
Part Number | Y7220 |
Model | Y7220 |
More information #ad