HTH 52037 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula, 12 Count(Pack of 1) Patio, Lawn & Garden

$69.00

In stock

About this item 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 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

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Product information

Product Dimensions 10.6 x 7.5 x 14.1 inches Item Weight 1 pounds Manufacturer Innovative Water Care ASIN B09R82X1S5 Country of Origin USA Item model number 52037 Customer Reviews 4.7 4.7 out of 5 stars

5,551 ratings

4.7 out of 5 stars Best Sellers Rank #23 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)

#3 in Swimming Pool Chlorine

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Product Dimensions 10.6 x 7.5 x 14.1 inches

Item Weight 1 pounds

Manufacturer Innovative Water Care

ASIN B09R82X1S5

Country of Origin USA

Item model number 52037

Customer Reviews /* * Fix for UDP-1061. Average customer reviews has a small extra line on hover * https://omni-grok.amazon.com/xref/src/appgroup/websiteTemplates/retail/SoftlinesDetailPageAssets/udp-intl-lock/src/legacy.css?indexName=WebsiteTemplates#40 */ .noUnderline a:hover { text-decoration: none; } .cm-cr-review-stars-spacing-big { margin-top: 1px; } 4.7 4.7 out of 5 stars 5,551 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); }); 4.7 out of 5 stars

Best Sellers Rank #23 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #3 in Swimming Pool Chlorine

About this item 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 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

The HTH 4-in-1 Shock Treatment is a must-have for anyone who wants to keep their pool water crystal clear. This fast-dissolving formula kills bacteria and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity. Its multi-functional shock treatment for weekly use can solve 90% of pool water problems within 24 hours. The Cal Hypo based formula sanitizes without adding cyanuric acid (CYA), preventing overstabilization or chlorine lock. Compatible with all swimming pools, including vinyl-lined pools and saltwater systems, this product is perfect for everyone. Use it with the HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly for the best results. With HTH 4-in-1 Shock Treatment, you’ll always stay all clear for cannonballs!

Additional information

Product Dimensions

10.6 x 7.5 x 14.1 inches

Item Weight

1 pounds

Manufacturer

Innovative Water Care

ASIN

B09R82X1S5

Country of Origin

USA

Item model number

52037

Customer Reviews

/* * Fix for UDP-1061. Average customer reviews has a small extra line on hover * https://omni-grok.amazon.com/xref/src/appgroup/websiteTemplates/retail/SoftlinesDetailPageAssets/udp-intl-lock/src/legacy.css?indexName=WebsiteTemplates#40 */ .noUnderline a:hover { text-decoration: none; } .cm-cr-review-stars-spacing-big { margin-top: 1px; } 4.7 4.7 out of 5 stars 5,551 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when('A', 'ready').execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( 'acrLink-click-metrics', 'click', { "allowLinkDefault": true }, function (event) { if (window.ue) { ue.count("acrLinkClickCount", (ue.count("acrLinkClickCount"), 0) + 1); } } ); } }); P.when('A', 'cf').execute(function(A) { A.declarative('acrStarsLink-click-metrics', 'click', { "allowLinkDefault" : true }, function(event){ if(window.ue) { ue.count("acrStarsLinkWithPopoverClickCount", (ue.count("acrStarsLinkWithPopoverClickCount"), 0) + 1); } }); }); 4.7 out of 5 stars

Best Sellers Rank

#23 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #3 in Swimming Pool Chlorine

Average Rating

4.88

59
( 60 Reviews )
5 Star
88.14%
4 Star
11.86%
3 Star
0%
2 Star
0%
1 Star
0%

Only logged in customers who have purchased this product may leave a review.

60 Reviews For This Product

  1. 59

    by Trey

    5.0 out of 5 stars

    Affordable and Effective Pool Shock – A Great Value!

    I recently purchased the HTH 52037 Swimming Pool Care Shock Advanced and have been thoroughly impressed with its performance. This swimming pool chemical has exceeded my expectations, providing excellent results at a fraction of the cost compared to the local pool store.The HTH 52037 Shock Advanced is a cal hypo formula that effectively restores clarity and cleanliness to my pool water. The 12-count pack offers ample supply for regular maintenance and shocking treatments. Each packet is conveniently pre-measured, making it easy to add the correct dosage without any guesswork.What truly stands out about this pool shock is its affordability. I was pleasantly surprised to find that the HTH 52037 Shock Advanced is significantly cheaper than similar products available at local pool stores. This affordability makes it a fantastic value for pool owners who want to maintain crystal-clear water without breaking the bank.In terms of performance, this pool shock delivers excellent results. It effectively eliminates contaminants, bacteria, and algae, leaving the pool water clean, fresh, and inviting. The cal hypo formula ensures a quick and efficient treatment, helping to maintain proper water balance and prevent any potential issues.The convenience factor of these pre-measured packets cannot be overstated. It saves time and eliminates the need for manual measuring, ensuring accurate dosing for consistent results. I appreciate the simplicity and ease of use that the HTH 52037 Shock Advanced provides.In conclusion, I highly recommend the HTH 52037 Swimming Pool Care Shock Advanced for anyone looking for an affordable and effective pool shock. Its cal hypo formula, combined with the convenience of pre-measured packets, makes it a reliable choice for maintaining a clean and balanced swimming pool. Furthermore, the significant cost savings compared to local pool stores add to its appeal. If you’re seeking a high-quality pool shock that offers exceptional value, look no further than the HTH 52037 Shock Advanced. It definitely deserves a well-deserved five-star rating!

  2. 59

    by Kathie8ch

    5.0 out of 5 stars

    DON’T BE CAUGHT WITHOUT IT!

    Shock Advanced is necessary for these HOT summer days! I keep back ups because Amazon usually runs low or out during the summer months. Here in south Louisiana I keep my pool open all year and this shock is a must-have! A weekly dose of 1-2 bags a week ( along with a float with 3 tablets) keep my pool sparkling all the time!

  3. 59

    by Dream With Me

    5.0 out of 5 stars

    Better price than anywhere else and is good too.

    I have fired my pool guy and am now taking care of my pool myself. Using this shock treatment has saved me from experiencing many headaches. I have noticed some reddish-violet sediments on the walls, which are removed through brushing. I’m unsure whether these sediments are caused by the shock treatment or the trees around my pool. Nevertheless, after using three packs of shock, my pool has cleared up and all the algae has been killed. Additionally, the shock treatment has helped stabilize the chlorine levels. I am pleased with this product.

    3 people found this helpful

  4. 59

    by Amazon customer

    5.0 out of 5 stars

    Works great with full sun and 100+ temperature

    Applied around noon in our above ground pool that we frequently use chlorine tablets in that don’t seem to work well in our Texas sun and heat waves. So we constantly have to vacuum the bottom and scrub off the sides each day even with algicide clarifying liquid applied religiously. After we applied the shock treatment the temperature remained well above 90 degrees and we also had some storms roll through quickly but the next day it was very clear blue with just minor areas that we vacuumed without wasting nearly as water. The chlorine levels are normal and it doesn’t burn or sting our eyes. Love this product.

    5 people found this helpful

  5. 59

    by Pete

    5.0 out of 5 stars

    Does the job, cheaper than my local pool supply store.

    Six bags of shock per bag, should last a month or so. Here in PHX, AZ, I’ve been using a 1 lb. bag of shock every week or 10 days. We all know what shock does, and this product works just fine. The price beats my local pool supply store by a few bucks, so I’m satisfied.

  6. 59

    by Delighted

    5.0 out of 5 stars

    Good Effective Product

    We live in Florida where our pool suffers occasionally from algae when the temperature soars and we use this product to help with that, and in general when the pool needs a ‘refresh’. It is simple to use and works well – our pool water sparkles after use. It is also great value compared to many others. We recommend this product

    3 people found this helpful

  7. 59

    by Safety Officer

    5.0 out of 5 stars

    Better price than store

    HTH pool products speaks for itself. I usually buy pool supplies from local pool store and after shocking my pool with HTH shock, the water was clearer than it has been in awhile. I was so impressed with the results that I got on a monthly shipment. Additionally the price was better than the store. Happy customer😁.

  8. 59

    by WJ

    5.0 out of 5 stars

    Works great!

    I was using a National chain store for pool stuff that didn’t work at all. This product works and I like the price

  9. 59

    by Tish

    5.0 out of 5 stars

    It really works

    Our pool was green and the minute we put this in it started clearing up we have a medium sized above ground pool.

  10. 59

    by Tblowers

    5.0 out of 5 stars

    Pool shock

    Just like pic same as you would get from anywhere else just cheaper

  11. 59

    by Rex

    5.0 out of 5 stars

    Great price works great!

    The chlorine arrive in great time and is a really good product . The price is great

  12. 59

    by David Boulding

    4.0 out of 5 stars

    Can’t beat the price

    Doesn’t dissolve as fast as more expensive shock and isn’t quite as strong, but is half the price. It’s not stabilized though, so check your cyanuric acid levels. If they’re low, you should stabilize your pool before using this shock or any cal-hypo shock for that matter.

    2 people found this helpful

  13. 59

    by Skt21

    5.0 out of 5 stars

    The Only shock I use

    Super product and long lasting, keeps our pool sparkling clear! Great prime day price, should have ordered more!

  14. 59

    by MaureenZ

    5.0 out of 5 stars

    Pool

    Arrived early and not damaged. This item is $10 cheaper than and my local stores.

  15. 59

    by Michael Janca

    5.0 out of 5 stars

    Best results!

    Works perfectly! You won’t be disappointed.

  16. 59

    by brandy

    5.0 out of 5 stars

    Best!!

    Best shock for above ground pools

  17. 59

    by Andrea Arenas

    5.0 out of 5 stars

    Neat package

    Fast shipping just what the pool doctor ordered.. unique packaging 5 stars

  18. 59

    by Kelly & Cary Reams

    5.0 out of 5 stars

    Probably the Best Shock Option on the Market Today

    This product works. Zero complaints – and it’s now the only shock I buy because everything else in planet Earth cost $9 Zillion!!!

    3 people found this helpful

  19. 59

    by J

    5.0 out of 5 stars

    Know how big your pool is and us 1 packet for every 13500 gallons

    Works well

  20. 59

    by annmarie ramos

    5.0 out of 5 stars

    Great choice

    We have tried many brands and this the one that we always reach out for!

    One person found this helpful

  21. 59

    by Linda B. Trusty

    5.0 out of 5 stars

    Shock for pool

    Thank you Good buy. It works great

  22. 59

    by William Edward Cutlip

    5.0 out of 5 stars

    Hey, it’s pool shock!

    The individual bags are nice, even though they add additional trash. The contents definitely do the job that they advertise.

  23. 59

    by Peter Westgard

    5.0 out of 5 stars

    Pool shock

    Low price for stabilizing pool chlorine

  24. 59

    by Jimmy de castro

    5.0 out of 5 stars

    works very well

    my husband use only this product for our pool. the water looks clean

    One person found this helpful

  25. 59

    by Bobbie

    5.0 out of 5 stars

    Notice a change in water

    A little cloudy water

  26. 59

    by Leslie Hester

    5.0 out of 5 stars

    Shock

    Love the product. My pool looks amazing. Thanks

  27. 59

    by Tim Bur

    5.0 out of 5 stars

    What I needed

    Worked fine

  28. 59

    by J. Mike Martinez

    5.0 out of 5 stars

    Works great

    Keeps my pool clear after parties and when algae grows.

  29. 59

    by Monique Barrett

    5.0 out of 5 stars

    Works great

    Bought these for a good price. Would buy again

  30. 59

    by The Flash

    4.0 out of 5 stars

    Does what it’s supposed to and cleans the pool well.

    Hard to find out when I can swim again. Had to spend more money and buy chlorine test strips. They told me what I suspected, you can’t swim till the next day. Otherwise I’m real happy with the purchase.

    One person found this helpful

  31. 59

    by Terry

    5.0 out of 5 stars

    Great pool shock

    Works great 👍

  32. 59

    by Terry melton

    5.0 out of 5 stars

    Shocking shock prices!

    I’m shocked!!

  33. 59

    by ED

    5.0 out of 5 stars

    Excellent all-around shock.

    Fast dissolving compared to some of the other shock treatments I have used. My pool is prone to yellow algae; I have had no recurring problem since using this brand. Cost is about one half the price of a local pool supplier.

    One person found this helpful

  34. 59

    by Timothy A. Cox

    5.0 out of 5 stars

    Works

    Dissolves easy when water temp is above 80. Sparkling water.

    One person found this helpful

  35. 59

    by Alexander Morris

    5.0 out of 5 stars

    great

    no issues-works as it should

  36. 59

    by Samantha

    5.0 out of 5 stars

    Works everytime

    I put this in my pool. And get a pool safe scrub brush and scrub all the stuff off the sides and bottom and turn my jets on full blast and let it clean it’s self. IT WORKS EVERY TIME

    2 people found this helpful

  37. 59

    by pomeranians

    5.0 out of 5 stars

    Excellent price

    Easy to use

  38. 59

    by Daniel Anderson

    5.0 out of 5 stars

    Works great

    Works as should. Great

    One person found this helpful

  39. 59

    by Teresa S Norris

    5.0 out of 5 stars

    Works well.

    This works great for lowering PH in pools and hot tubs. It works so well I ordered more. I would recommend.

    One person found this helpful

  40. 59

    by Shawn J

    4.0 out of 5 stars

    Lasted all season last year

    This was enough for me to last all last summer and it works very well. Ordered again for this summer. Helps keep keep pool looking it’s best

  41. 59

    by michael s.

    5.0 out of 5 stars

    Good value

    Good value, half price of W/M

    One person found this helpful

  42. 59

    by S. Martino

    5.0 out of 5 stars

    Great shock!

    I have tried several different brands of shock and HTH is the best that I have used. I went away for a week on vacation and due to torrential rains and bad weather while I was away I got a lot of green algae buildup in my pool. Once I returned, I shocked the pool with 2 bags of HTH shock and within hours my algae problem was gone! Very effective product that doesn’t affect stabilizer levels and just helps with chlorine levels to get them back to normal quick. I’ll continue to buy only HTH shock and pool products from now on for regular use.

    5 people found this helpful

  43. 59

    by Lisa

    5.0 out of 5 stars

    Only shock I use

    Been using this shock for 12 years. Happy with product. Does good job.Keeps water crystal clear.

    2 people found this helpful

  44. 59

    by KP

    5.0 out of 5 stars

    Pool

    Was recommended this product to help out pool, worked great and will order again

    2 people found this helpful

  45. 59

    by Amazon Customer

    5.0 out of 5 stars

    Works great!

    These packages definitely do their job well!

  46. 59

    by Mercury Man

    5.0 out of 5 stars

    Worked well

    Seems to work very well.

  47. 59

    by chris

    5.0 out of 5 stars

    Works!

    Works fast. Pool was crystal clear in a day

    One person found this helpful

  48. 59

    by Stephen Upham

    5.0 out of 5 stars

    Easy to use and good value

    I bought this product although usually one use packages are more expensive per lb. than bucket versions. This product wasn’t; it was cheaper. I have had good experience in the last two weeks. The pool is crystal clear.

    One person found this helpful

  49. 59

    by Melissa Michalak

    4.0 out of 5 stars

    Good

    It works fast I recommendevery five days !!

  50. 59

    by Terry

    5.0 out of 5 stars

    Great pool shock

    Works great 👍

  51. 59

    by John Williams

    4.0 out of 5 stars

    Very good but over priced.

    I would give it five stars but it’s severely overpriced.

  52. 59

    by Anna Skvir

    5.0 out of 5 stars

    Works Great

    Def Recommend!!

  53. 59

    by Lorie

    4.0 out of 5 stars

    Nice product

    Works quickly and keeps algae down

  54. 59

    by MarilynMarilyn

    5.0 out of 5 stars

    Shock

    Works great for my pool as advertised

  55. 59

    by Mike in NC

    4.0 out of 5 stars

    Any pool chemical is getting expensive

    It’s shock. I bought it for the weekly maintenance and when opening the pool for the season… WOW it was just so mush more $$ than in years past. But it works like a champ.

  56. 59

    by Lizzie

    5.0 out of 5 stars

    Great Price.

    Hard to find at such a great price.

  57. 59

    by AZsooner

    5.0 out of 5 stars

    No Cyanuric Acid build-up

    The transaction and shipping were quick and easy. After dealing with high Cyanuric Acid levels for several years I decided to go back to Cal-Hypo shock it has worked. After draining my pool and re-filling and using this shock (and Cal-Hypo tabs) my Cya levels have remained in the acceptable range and I don’t spend a lot of time chasing balance in the pool water.

    3 people found this helpful

  58. 59

    by Amazon Customer

    5.0 out of 5 stars

    Swimming Pool Care Shock

    works great

  59. 59

    by K8-2023

    5.0 out of 5 stars

    Better Price than Walmart

    I use this for my pool all the time. The price here is better than Walmart (as of June 2023) & it’s delivered right to your door!

    3 people found this helpful

  60. 59

    by CEK JR

    4.0 out of 5 stars

    Great Stuff but use with caution.

    Removes color from linier

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