As an Amazon Associate I earn from qualifying purchases.
Extra power - due to its high percentage of chlorine, Mega Shock is a very effective treatment for a quick chlorine boost.
Wait to swim 8 to 10 hours after you start the application. Mix before you fix - add this granular powder to a bucket of water before you begin dissolving it in your pool. Beat the green - keep in your swimming pool algae free by adding 2 bags 2 lbs of shock per 14, 000 gallons of pool water.









1. Rx Clear
#ad
Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 48 Pack
#adRx Clear #ad - These granules work as an algaecide if your pool needs cleaning, or if you're opening for the season. Add a 1 lb bag per 10, 000 gallons of pool water for smart maintenance. Multi-purpose - this swimming pool shock works as a strong sanitizer, clarifier, and algicide for clear blue water.Extra power - due to its high percentage of chlorine, Mega Shock is a very effective treatment for a quick chlorine boost.
More information #ad
The rx clear Mega shock packets are chlorinating essentials. Works best at night - maximize performance by adding this shock to your pool at night. Trust rx clear to supply reliable chemicals, supplies, and equipment for your above or in ground pool, spa or hot tub. Wait to swim 8 to 10 hours after you start the application. Mix before you fix - add this granular powder to a bucket of water before you begin dissolving it in your pool. Beat the green - keep in your swimming pool algae free by adding 2 bags 2 lbs of shock per 14, 000 gallons of pool water.
Brand | Rx Clear #ad |
Manufacturer | Rx Clear #ad |
Weight | 1 Pounds |
Part Number | 20406348 |
More information #ad
2. In The Swim
#ad
In The Swim Super Pool Algaecide – Low Odor Non-Foaming Preventative Treatment for Yellow Algae in Above Ground or In-Ground Swimming Pools – 1 Quart
#adIn The Swim #ad - Contains 7. 1% chelated Copper chelated to protect from staining. Provides superior algae-fighting power with long lasting effects. Note: we are currently unable to ship super algaecide to the state of california.More information #ad
Non-foaming formula, with no odor. We apologize for the inconvenience. Safe enough to swim directly after use.Brand | In The Swim #ad |
Manufacturer | In The Swim Discount Pool Supplies #ad |
Height | 3.1 Inches |
Length | 9.8 Inches |
Weight | 2.92 Pounds |
Width | 3.2 Inches |
Part Number | F055001012AE |
Model | F055001012AE |
More information #ad
3. United Chemicals
#ad
United Chemical Green Treat Algicide for Swimming Pools & Spas
#adUnited Chemicals #ad - Chemical Type: Granular. Per 20, 000 gallons. Dosage rate: 2 lbs. Use: algaecide; eradicate blooms of green swimming pool algae. Compatible with: Pools treated with chlorine including salt generators and bromine.More information #ad
Brand | United Chemicals #ad |
Height | 0 Inches |
Length | 0 Inches |
Width | 0 Inches |
Part Number | HL74 |
Model | HL74 |
More information #ad
4. Baquacil
#ad
1 qt, Baquacil 84464 Performance Algicide Swimming Pool Algaecide Cleanser
#adBaquacil #ad - Features: chlorine-free; Non-foaming formula; Effective against all types of algae. Includes: one 1-qt container of Baquacil Performance Algicide.More information #ad
Use: use 6-11 ounces per 10, 000 gallons of pool water. Compatibility: made to use with the Baquacil CDX pool care system. Benefits: swimming pool algaecide to eliminate and prevent algae in your pool water.Brand | Baquacil #ad |
Manufacturer | Innovative Water Care #ad |
Height | 9.7 Inches |
Length | 3.12 Inches |
Width | 3.12 Inches |
Part Number | 84464 |
Model | 84464 |
More information #ad
5. BioGuard
#ad
BioGuard Banish Algicide, 1 Quart
#adBioGuard #ad - Use in chlorine or bromine pools with all surfaces or filter types. Fast-acting, non-foaming, producing results in 24 hours. Premium formula, highly effective, kills ALL types of algae.More information #ad
Brand | BioGuard #ad |
Manufacturer | BioLab #ad |
Weight | 1.98 Pounds |
Part Number | 23500BIO |
Model | BIO23500 |
Warranty | Returns are not accepted on opened or used products and are subject to a 20% restocking fee. |
More information #ad
6. Baquacil
#ad
1 qt., BAQUACIL 84406 Select Algicide Swimming Pool Cleaner Chemical
#adBaquacil #ad - Use: 32 ounces treats 10, 000 gallons of pool water; Swimming pool algaecide for persistent algae. Benefits: designed for use against green, yellow, and black algae so you can enjoy swimming all season long.More information #ad
Compatibility: effective in a wide range of pH levels and can be used on all pool surfaces. Includes: one 1-quart bottle of algaecide for swimming pools. Features: chlorine free; Long-lasting protection.Brand | Baquacil #ad |
Manufacturer | Innovative Water Care #ad |
Height | 9.7 Inches |
Length | 3.12 Inches |
Weight | 2 Pounds |
Width | 3.12 Inches |
Part Number | 84406 |
Model | 84406 |
More information #ad
7. Baquacil
#ad
Baquacil 84326 Algicide Swimming Pool Algaecide Cleanser, 1 qt
#adBaquacil #ad - Use: designed to be used weekly in your swimming pool. Features: chlorine-free and Bromine-Free formula; Pool can be used 15 minutes after dosing.More information #ad
Includes: one 1-qt container of Baquacil Algicide. Benefits: controls algae slime growth in your swimming pool. Compatibility: made to use with the Baquacil CDX pool care system.Brand | Baquacil #ad |
Manufacturer | Innovative Water Care #ad |
Height | 10 Inches |
Length | 3.46 Inches |
Width | 3.46 Inches |
Part Number | 84326 |
Model | 84326 |
More information #ad
8. BioGuard
#ad
BioGuard Algicide 28-40 1 qt 1
#adBioGuard #ad - Bioguard algicide 28-40 1qt. Controls many forms of algae growth and works in either chlorinated or brominated swimming pools. Use once a week. Helps reduce maintenance costs. Prevents and controls algae growth.More information #ad
Brand | BioGuard #ad |
Manufacturer | BioGuard #ad |
Height | 3 Inches |
Length | 10 Inches |
Width | 3 Inches |
Part Number | 23043BIO |
Model | BIO23043 |
Warranty | Returns are not accepted on opened or used products and are subject to a 20% restocking fee. |
More information #ad
9. Clorox Pool&Spa
#ad
Clorox Pool&Spa 43128CLX 42128CLX Pool Algaecide
#adClorox Pool&Spa #ad - Suitable for all pool types. Built in clarifier. Prevents and treats pool algae. Packaging may vary*. Non-foaming formula.More information #ad
Brand | Clorox Pool&Spa #ad |
Manufacturer | Clorox Pool&Spa #ad |
Height | 11.13 Inches |
Length | 6.35 Inches |
Weight | 8 Pounds |
Width | 6.35 Inches |
Part Number | 42128CLX |
Model | 43128CLX |
More information #ad
10. In The Swim
#ad
1 Quart, In The Swim Swimming Pool Algaecide
#adIn The Swim #ad - Recommended for use in well water to prevent staining. Great for small above ground pools. Safe to swim immediately after application. Can be applied to inground or above ground pools/spas. Fast acting liquid algaecide prevents green and yellow mustard algae.More information #ad
Brand | In The Swim #ad |
Manufacturer | ALL CHEM INDUSTRIES #ad |
Height | 3.1 Inches |
Length | 9.9 Inches |
Weight | 2.19 Pounds |
Width | 3.1 Inches |
Part Number | F041001012AE |
Model | F041001012AE |
More information #ad