20 Best Zappit 73 Pool Shock in 2024 Reviews and Buying Guide

2,979 (rnd) Reviews Scanned

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1 Zappit 73 Dry Chlorinating Granules for Swimming Pools (50 lb) Zappit 73 Dry Chlorinating Granules for Swimming Pools (50 lb) No ratings yet
2 Super Shockwave Pool Shock – 73% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends... Super Shockwave Pool Shock – 73% Cal-Hypo Granular Sanitizer for Crystal Clear Water –... No ratings yet
3 Zappit (73% Cal Hypo Swimming Pool Shock 8000066 Zappit (73% Cal Hypo Swimming Pool Shock 8000066 No ratings yet
4 Pool Shock by Aqua Org Plus - 65% Granular Cal Hypo - Swimming Pool Shock for In-Ground, Above... Pool Shock by Aqua Org Plus - 65% Granular Cal Hypo - Swimming Pool Shock for In-Ground, Above...
5 DryTec 1-1901-24 Calcium Hypochlorite Pool Shock, 1-Pound, 24-Pack DryTec 1-1901-24 Calcium Hypochlorite Pool Shock, 1-Pound, 24-Pack
6 Leslie's Power Powder Plus Flagship Pool Shock and Super-Chlorinator, 1lb - 12 Pack Leslie's Power Powder Plus Flagship Pool Shock and Super-Chlorinator, 1lb - 12 Pack No ratings yet
7 In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends... In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends...
8 Doheny's Super Pool Shock 24 x 1 Lb Bags Doheny's Super Pool Shock 24 x 1 Lb Bags No ratings yet
9 Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool... Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool... No ratings yet
10 HTH 52037 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula (12 Pack) HTH 52037 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula (12 Pack)
11 Clorox® Pool&Spa™ Shock Plus, for Crystal Clear Swimming Pool Water, Swim-ready in 15 minutes,... Clorox® Pool&Spa™ Shock Plus, for Crystal Clear Swimming Pool Water, Swim-ready in 15 minutes,... No ratings yet
12 GLB 1 lb Supersonic Shock 73 Cal Hypo GLB 1 lb Supersonic Shock 73 Cal Hypo No ratings yet
13 BioGuard Burnout 73, 1 lb, Single, Superchlorinator for Swimming Pools, Restores Sparkle and Clarity... BioGuard Burnout 73, 1 lb, Single, Superchlorinator for Swimming Pools, Restores Sparkle and...
14 Rx Clear Stabilized Granular Chlorine | One 50-Pound Bucket | Use As Bactericide, Algaecide, and... Rx Clear Stabilized Granular Chlorine | One 50-Pound Bucket | Use As Bactericide, Algaecide, and... No ratings yet
15 poolife Turbo Shock (25 lb) poolife Turbo Shock (25 lb) No ratings yet
16 GLB 23224-24 Calcium Hypochlorite Pool Shock, 1-Pound, 24-Pack GLB 23224-24 Calcium Hypochlorite Pool Shock, 1-Pound, 24-Pack
17 Pool Brand Blackout Trichlor Granular 90 Swimming Pool Shock Sanitizer - 90% Available Chlorine -... Pool Brand Blackout Trichlor Granular 90 Swimming Pool Shock Sanitizer - 90% Available Chlorine -... No ratings yet
18 BioGuard Burnout 73, 1 lb, Pack of 24, Superchlorinator for Swimming Pools, Restores Sparkle and... BioGuard Burnout 73, 1 lb, Pack of 24, Superchlorinator for Swimming Pools, Restores Sparkle and...
19 Pool Breeze Power 73 Shock Treatment (1 lb) Pool Breeze Power 73 Shock Treatment (1 lb) No ratings yet
20 Rx Clear 3' Inch Stabilized Chlorine Tablets | 50 Pounds | Individual Chlorinating Tabs for... Rx Clear 3" Inch Stabilized Chlorine Tablets | 50 Pounds | Individual Chlorinating Tabs for...

Bestseller No. 1
Zappit 73 Dry Chlorinating Granules for Swimming Pools (50 lb)
  • Pool Shock and Super Chlorinator
  • Fast dissolving granular formula
  • 73% Cal-Hypo (Calcium Hypochlorite)
  • Prevents future growth of algae
  • Non-Stabilized Calcium Hypochlorite
SaleBestseller No. 2
Super Shockwave Pool Shock – 73% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends...
  • Fast-dissolving formula: Our Super ShockWave Pool Shock quickly dissolves upon application, delivering rapid results for cleaner, clearer water in no...
  • Powerful shock treatment: Eliminates organic contaminants, bacteria, and algae, restoring water clarity and freshness for a rejuvenating swim or soak.
  • Quickly eliminates algae, bacteria, and other harmful contaminants from your pool water.
Bestseller No. 3
Zappit (73% Cal Hypo Swimming Pool Shock 8000066
  • Pool shock treatment
  • 1lb treats 16,500 gallons
  • Available in 25lbs or 50lbs buckets
SaleBestseller No. 4
Pool Shock by Aqua Org Plus - 65% Granular Cal Hypo - Swimming Pool Shock for In-Ground, Above...
  • PRODUCT SPECS: 55 pound bucket of Aqua Org Plus calcium hypochlorite (pool shock). Works in in-ground, above-ground pools, spas and hot tubs. 65% Cal...
  • KEY FEATURES: Fast acting Aqua Org Plus calcium hypochlorite & professional-grade formula tackles algae blooms, restores water clarity, raises...
  • DIRECTIONS: Ensure the pool filter is running. Measure (1lb for 10,000 gallons of water) & pour Aqua Org Plus cal hypo into water directly. Distribute...
  • BENEFITS: Non-stabilized Aqua Org Plus formula (no CYA’s) to prevent chlorine lock. Effective for all swimming pool types including pools with...
  • BEST PRACTICES: Keep Aqua Org Plus products out of reach of children. Avoid direct contact with skin and eyes. Use in a well ventilated area. Store in...
Bestseller No. 5
DryTec 1-1901-24 Calcium Hypochlorite Pool Shock, 1-Pound, 24-Pack
  • One bag of this product per 10,000 gallons of water
  • Adjust and maintain pH at 7.2-7.6
  • Maintain total alkalinity in the range of 60 to 120
  • One bag of this product per 10,000 gallons of water provides 5 to 10 ppm available chlorine
  • 68% Calcium Hypochlorite
SaleBestseller No. 7
In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends...
  • Powerful chlorine shock treatment that is great for regular maintenance.
  • Quickly eliminates algae, bacteria, and other harmful contaminants from your pool water.
  • Main active ingredient is 68% Calcium Hypochlorite (Cal-Hypo) for quick sanitizing.
  • Dosage: 1 Pound per 10,000 gallons
  • Cal-Chlor granules can be used in swimming pools, spas and hot tubs. Must pre-dissolve/dilute to prevent bleaching of the liner.
Bestseller No. 8
Doheny's Super Pool Shock 24 x 1 Lb Bags
  • Fast Acting Pool Shock Treatment: Quickly boost the chlorine levels in your pool to remove algae and other contaminants for crystal clear pool water
  • Pro-Grade Cal Hypo Pool Shock for Regular Maintenance: Made of 68% calcium hypochlorite, with 65% available chlorine, regular doses of this chlorine...
  • Easy to Use: Each pound of chlorine shock comes in its own easy-to-use bag for quick, measure-free use
  • How to Use: Use one 1lb bag of Super Shock per 10,000 gallons of water. Spring openings and pools that have extensive algae blooms may require 2-3...
  • Made in the USA: Doheny's Super Shock is manufactured and packaged in the USA
Bestseller No. 9
Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool...
  • 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. The Rx Clear Mega shock...
  • MIX BEFORE YOU FIX - Add this granular powder to a bucket of water before you begin dissolving it in your pool. Add a 1 lb bag per 10,000 gallons of...
  • 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. These granules work as an...
  • WORKS BEST AT NIGHT - Maximize performance by adding this shock to your pool at night. Wait to swim 8 to 10 hours after you start the application....
Bestseller No. 10
HTH 52037 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula (12 Pack)
  • BENEFITS: Stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills bacteria and algae, reduces chlorine odor and...
  • FEATURES: Multi-functional shock treatment for weekly use to solve 90% of pool water problems within 24 hours and restore crystal clarity
  • VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock
  • COMPATIBLE WITH ALL SWIMMING POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems
  • 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
Bestseller No. 11
Clorox® Pool&Spa™ Shock Plus, for Crystal Clear Swimming Pool Water, Swim-ready in 15 minutes,...
  • 4 in 1 Formula: Kills bacteria and won’t impact pH. Clears cloudy water. Destroys contaminants. Improves filter performance
  • Swim-ready in 15 minutes: Fast dissolving formula works quickly so you can treat and swim in just 15 minutes
  • Compatibility: This product is safe for all swimming pool surfaces, including vinyl, plaster, fiberglass, and tile.
  • Usage: Use 1 lb. per 12,000 gallon of water. Shock pool weekly and after heavy use, high temperatures, or rain.
  • Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App. Solve common swimming pool problems and get personalized product and...
SaleBestseller No. 13
BioGuard Burnout 73, 1 lb, Single, Superchlorinator for Swimming Pools, Restores Sparkle and Clarity...
  • Superchlorinator: BioGuard Burnout 73 is a superchlorinator for swimming pools. With the highest percentage of calcium hypochlorite of all the...
  • Restores Water Sparkle & Clarity: Helps restore water clarity and maintain optimal chemical balance by oxidizing combined chlorine compounds and other...
  • Suitable for Use in All Types of Pools: Burnout 73 is suitable for all types of pool surfaces, including vinyl, fiberglass, and plaster, and...
  • Cost-Effective Solution: Formulated with advanced technology to rapidly eliminate algae and other contaminants in the pool, the granular formula...
  • Tested and Proven Effective: BioGuard products are known for delivering reliable results and making pool care easy. BioGuard carries an extensive line...
Bestseller No. 14
Rx Clear Stabilized Granular Chlorine | One 50-Pound Bucket | Use As Bactericide, Algaecide, and...
  • CLEAR WATER FOR SAFE SWIMMING - Swimming in crystal clear water does not mean your skin has to suffer. The granular chlorine is 99% sodium diclor...
  • LONG LASTING - Dichlor resists UV light, lasting longer than other types of chlorinating supplies due to built in stabilizer for your swimming pool,...
  • 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...
  • FEWER CHEMICALS NEEDED - Our dichlor is pH neutral, meaning less chemical adjustments to be made by you! This pool chlorinator acts as a sanitizer,...
  • TRUSTED POOL SUPPLIES - Rx Clear is the best choice for swimming pool accessories and pool chemicals and supplies.
SaleBestseller No. 15
poolife Turbo Shock (25 lb)
  • Poolife Turbo Shock (25 lb)
  • Works fast to combat algae and bacteria
  • Dissolves quickly and completely
  • Keeps swimming pool water sparkling clean and clear
  • Calcium Hypochlorite: 78%
Bestseller No. 16
GLB 23224-24 Calcium Hypochlorite Pool Shock, 1-Pound, 24-Pack
  • 9 to 18 ounces of this product per 10,000 gallons of water
  • Adjust and maintain pH at 7.2-7.6
  • Maintain total alkalinity in the range of 60 to 120
  • 9 to 18 ounces of this product per 10,000 gallons of water to provide 5 to 10 ppm available chlorine
  • 73% Calcium Hypochlorite
Bestseller No. 17
Pool Brand Blackout Trichlor Granular 90 Swimming Pool Shock Sanitizer - 90% Available Chlorine -...
  • Eliminates bacteria, algae, and other organic contaminants, keeping your pool clean and clear all season long.
  • 99% Trichloro-S-Triazinetrione and 90% available stabilized chlorine.
  • Ideal for swimming pools with white plaster surfaces
  • Removes stubborn black alage from your pool water
  • Can be utilized as an alternative to Calcium Hypochlorite (Cal Hypo) pool shock
SaleBestseller No. 18
BioGuard Burnout 73, 1 lb, Pack of 24, Superchlorinator for Swimming Pools, Restores Sparkle and...
  • Powerful Calcium Hypochlorite Pool Shock
  • BioGuards Stronges Shock
  • 1 lb treats 16,500 gallons of water
  • 24 Pack
Bestseller No. 19
Pool Breeze Power 73 Shock Treatment (1 lb)
  • Shocks, sanitizes, clarifies, and helps prevent algae in your pool
  • Won't over-stabilize your pool
  • Clear up cloudy water, and make it healthier on swimmer's skin
SaleBestseller No. 20
Rx Clear 3" Inch Stabilized Chlorine Tablets | 50 Pounds | Individual Chlorinating Tabs for...
  • POOLS, SPAS & HOT TUBS - 99% Trichloro-S-Triazinetrione and 90% Available Stabilized Chlorine! Prevents equipment corrosion, surface stains, and...
  • EASY TO USE - Use 1 tablet per 5,000 gallons of water. Add chlorine tablets to your chlorine feeder, skimmer, or floater. Or add to an existing...
  • CLEAR WATER THAT LASTS - Rx Clear chlorine tablets are slow dissolving and long lasting which makes for consistent chlorination! One dose will last up...
  • TRUSTED POOL SUPPLIES - You can trust Rx Clear to balance your pool and spa chemistry keeping your water safe and clear. Check out our storefront for...
  • PLEASE NOTE: Some tabs may arrive cracked or broken within the interior packaging due to shipping. This breakage is completely normal and will not...
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