SKU: 92310568924

HTH pH Up: Spa pH Increaser

Sale price$13.49 Regular price$14.99
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

HTH pH Up: Spa pH IncreaserBalance the pH levels in your spa water using our spa pH increaser for beautiful clarity, improved sanitizer efficiency and a more relaxing experience. Our pH increaser increases pH levels in spas and hot tubs for healthy and clear spa water Allows sanitizer to work more effectively prevents corrosion of spa surfaces and equipment Contains mineral crystals HTH spa pH Up is formulated to provide a more relaxing spa experience. Compatible with all spas

Balance the pH levels in your spa water using our spa pH increaser for beautiful clarity, improved sanitizer efficiency and a more relaxing experience.


  • Our pH increaser increases pH levels in spas and hot tubs for healthy and clear spa water
  • Allows sanitizer to work more effectively
  •  prevents corrosion of spa surfaces and equipment


Contains mineral crystals

HTH spa™ pH Up is formulated to provide a more relaxing spa experience.


Compatible with all spas

HTH spa™ pH Up is great for all spas, including bromine, chlorine and biguanide.


You’re all clear with HTH™

For best results, use HTH spa™ Test Strips twice a week to test, and use our spa pH increaser to balance and maintain total pH levels between 7.2 and 7.8 ppm.


How to use

HTH spa™ Care pH Up: Spa pH Increaser


Test Your Spa Water

Use HTH spa™ Test Strips to test your spa water twice weekly. pH levels should be maintained between 7.2 and 7.8 ppm.


Apply HTH spa™ pH Up

If the pH level measures below 7.2 ppm, apply pH Up directly to the filter skimmer with the spa circulation system running. Refer to the on-pack chart for correct dosage.


Re-check pH Levels

After the spa circulation system has been running for 30 minutes, re-test pH and add more pH Up if necessary.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 92310568924

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4.2 ★★★★★
Based on 8 reviews
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Monica
Lowell, US
★★★★★ 5
Super comfortable!!!!
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
They are super soft and large; they come vacuum-sealed and expand very quickly. They aren't heavy, and they are incredible for sleeping and watching TV in bed.
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Reviewed in the United States on June 4, 2026
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Beatriz Cabrera Portuondo
Battle Creek, US
★★★★★ 5
Comfort and Quality
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
These pillows are very comfortable. They hold their shape well throughout the night and have greatly improved my sleep. Plus, the quality of the materials is excellent. Highly recommended!
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Reviewed in the United States on June 2, 2026
D
Verified Purchase
D. Stec
Louisville, US
★★★★★ 1
Terrible pillows
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
These pillows might be fine if you need them for a decorative sham, but definitely NOT to sleep on. They are super lumpy and soft, days after taking them out of package. It seems like there are just bunches of cotton strips in a row that are hard to fluff. They are also dark in some areas, so it looks like the pillow is stained, when in fact it's whatever material the stuffing is. I can't return them because they won't fit back in the box. Super disappointing.
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Reviewed in the United States on March 8, 2026
L
Verified Purchase
Lianay Reyes
Birmingham, US
★★★★★ 5
Comfortable from the first night
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
I found them comfortable and with good support for the head and neck. They are wide in size and feel soft when lying down. After several days of use they continue to retain their shape without problem.
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Reviewed in the United States on June 6, 2026
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Verified Purchase
Tom Armstrong
Carnegie, US
★★★★★ 4
Not as Firm as I had hoped
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
A good pillow. However, there is quite a difference between the manufacturer's and my idea of "medium firmness". I found this pillow much softer than I had anticipated. I'll have to go for firmer for my next purchase.
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Reviewed in the United States on July 28, 2025

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