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hth Spa

HTH Spa 86121 Clarifier, Concentrated Spa & Hot Tub Chemical for Crystal Clear Water, 16 oz

  • Based on 1,313 reviews
Condition: New
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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Nov 22
Order within 18 hours and 28 minutes
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Features

  • BENEFIT: Use this concentrated formula to bring crystal clarity back to dull spa or hot tub water and enjoy a more relaxing experience
  • STRONG CLEANSER: Concentrated formula that will ensure your spa or hot tub is ideal for soaking for a long time
  • IMPROVES PERFORMANCE: Raises filter efficiency to keep your water staying clean
  • COMPATIBLE WITH ALL SPAS: HTH Spa Clarifier is great for all spas, including bromine, chlorine and biguanide
  • YOU'RE ALL CLEAR WITH HTH: For best results, use HTH Spa Clarifier as part of your regular HTH Spa care routine

Description

The HTH Spa Clarifier is a must-have for any spa or hot tub owner. This concentrated formula helps to bring crystal clarity back to dull water, ensuring a more relaxing soaking experience. The strong cleanser is formulated to improve performance and raise filter efficiency, keeping your water clean and clear. HTH Spa Clarifier is compatible with all spas, including those that use bromine, chlorine, and biguanide systems. For best results, use HTH Spa Clarifier as part of your regular HTH Spa care routine. With HTH, you're all clear and ready to relax in your spa or hot tub!

Brand: hth Spa


Item Weight: 16 Ounces


Item Form: Liquid


Product Benefits: Restores crystal clarity to spa water, improves filter efficiency, compatible with all spas, part of regular HTH Spa care routine See more


UPC:


Brand: hth Spa


Item Weight: 16 Ounces


Item Form: Liquid


Product Benefits: Restores crystal clarity to spa water, improves filter efficiency, compatible with all spas, part of regular HTH Spa care routine


UPC: 073187861214


Global Trade Identification Number: 14


Number of Items: 1


Unit Count: 16.0 Fluid Ounces


Product Dimensions: 2.46 x 2.46 x 7.85 inches


Item Weight: 1 pounds


Department: Unisex-Adult


Manufacturer: Innovative Water Care


Item model number: 86121


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great product!
Size: No Size
Review Image by Erika Skol Erika Skol
Review Image by Erika Skol Erika Skol
Review Image by Erika Skol Erika Skol
This stuff worked miracles. Hot tub was chemically balanced but I could not clear the haze. I tried another clarifier and the water did not clear. This worked within 4 hours.
Reviewed in the United States on August 13, 2025 by Erika Skol Erika Skol
    • Sparkling water
Size: No Size
This spa clarifier cleared up my cloudy hot tub water within hours although chemicals were balanced. Super easy to use—just pour 1-2 capfuls in. No foam, no smell, and it didn’t mess with water chemistry. We use it about once a week now for clear water
Reviewed in the United States on July 27, 2025 by Eric Atherton
    • Excellent clarifier
Size: No Size
Worked great. Use once a week
Reviewed in the United States on October 15, 2025 by J Claudio
    • Ours took nearly 3 days to get the water crystal clear. (FINALLY)
Size: No Size
Took off one star as it did not perform as well as all the positive reviews stated. Some reported over night. Ours took nearly 3 days and no we put the correct amount in for our hot tub. At least it finally cleared up our cloudy water.
Reviewed in the United States on September 17, 2025 by DemonDog
    • Happy!
Size: No Size
On time. Works as it should.
Reviewed in the United States on September 21, 2025 by Lorraine Sellner
    • Perfect for our needs
Size: No Size
This is a regular purchase for a hot tub. This brand works great.
Reviewed in the United States on October 15, 2025 by Tigerfan01
    • Best $10 I Ever Spent
Size: No Size
Review Image by AH AH
Finally a product that does what it promises. I drained/refilled spa two weeks ago and it clouded up a few days later. Ph and Chlorine were fine. Tried to shock with Renew to no avail. Put 4oz of this in my 500 gal spa and overnight milky, cloudy water turned clear. Best $10 I ever spent.
Reviewed in the United States on June 15, 2025 by AH AH
    • Great clear water - clearer!
Size: No Size
Great clear water - clearer! Thank you!
Reviewed in the United States on September 18, 2025 by Steven M. Kristensen

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