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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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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Apr 22
Order within 18 hours and 51 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 Name: hth Spa


UPC: 073187861214


Global Trade Identification Number: 14


Item Type Name: Concentrated Spa & Hot Tub Chemical for Crystal Clear Water


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


Manufacturer: Innovative Water Care


Unit Count: 16.0 Fluid Ounces


Manufacturer Warranty Description: Warranty


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


Item Weight: 16 Ounces


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Apr 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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Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • Clear water
Size: No Size
Used another product originally and did not clear up water at all. Purchased and tried HTH Spa Clarifier. This product worked great. After first filtration cycle, there was a ring around the tub with much scum, assuming soaps and lotion in the water from suits and bodies. Wiped clean, changed filter and ran again. Same thing with ring around tub but water was very clear. Rinsed filter and ran one more time. Excellent results. Would recommend this product to make water crystal clear. Make sure to rinse filter or change out as noted above. ... show more
Reviewed in the United States on February 10, 2026 by DC
    • Excellent
Size: No Size
Great product for our hot tub! Have tried other brands but this is the best for product/price.
Reviewed in the United States on April 4, 2026 by Amazon Customer
    • Great to keeep your hot tub free of particulate
Size: No Size
Helps to clean little particles from hot tub. This product works great.
Reviewed in the United States on March 31, 2026 by CrazyKat
    • Works
Size: No Size
This stuff works,gathers up all the very small things in the water and makes them visible to net. It clumps the particles together.
Reviewed in the United States on September 19, 2025 by TheresaC
    • Cleared my hot tub of pollen quickly
Size: No Size
Works well and quickly
Reviewed in the United States on March 21, 2026 by Steven Fowler
    • Hot tub
Size: No Size
Works great for our hot tub
Reviewed in the United States on April 7, 2026 by tazman40
    • Good product to keep my tub clean
Size: No Size
Bought this clarifier to use in my overall spa care routine. Large bottle makes it a good value for the money. Has been functioning as well as any other products I’ve used with no obnoxious smell. Keeps my water crystal clear. Will buy again when I run out.
Reviewed in the United States on November 13, 2025 by Savvy Shopper
    • Good quality
Size: No Size
Perfect for what I needed. Came quickly and in good condition.
Reviewed in the United States on March 27, 2026 by Tracy D. Hart

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