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♨️ Elevate your spa game—because balanced water is the new luxury.
Hot Tub Things pH Up Alkalinity Increaser is a premium 1 lb spa water balancer designed to raise alkalinity and stabilize pH levels efficiently. Compatible with all major hot tub systems including chlorine, bromine, and mineral purifiers, it supports pools and spas up to 2000 gallons. Trusted by professionals for over 30 years, this fast-acting formula simplifies water maintenance, ensuring crystal-clear, corrosion-free water with minimal product use.
| ASIN | B0FNYBYMS9 |
| Best Sellers Rank | #52,236 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #129 in Swimming Pool Balancers |
| Brand | Hot Tub Things |
| Brand Name | Hot Tub Things |
| Customer Reviews | 4.6 out of 5 stars 649 Reviews |
| Item Form | Liquid |
| Item Highlight | Supports Balanced Water Levels, Compatible With Chlorine, Bromine, And Mineral Systems, Ideal For Pool And Spa Maintenance |
| Manufacturer | Hot Tub Things |
| Manufacturer Part Number | 850511004239 |
| Model Number | 850511004239 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Benefits | Alkalinity Increaser, pH Increaser, Prevents Corrosion |
| UPC | 850511004239 |
| Unit Count | 16 Ounce |
L**O
Good value, great quality.
I’d say this increaser is higher quality than what I’ve used before, meaning I use less of it but get quicker results. A little goes a long way. I’ve owned hot tubs for over 30 years and have used everything from every major brand. With spa chemicals, you usually get what you pay for. In the last year, I’ve been so impressed with the quality of their products that I started using this brand almost exclusively. 2 thumbs up.
M**H
Great Product
I used this for pH control in the Hot Tub and it works Great.
D**M
This product works great!
My husband and I are new hot tub owners and buying this product made it really easy to care for our tub. The directions are easy to follow and the product works almost instantly. The product arrive in a timely fashion too. I recommend this to anyone who cares for a hot tub!
D**R
It works
This product has worked well for me. It raises the ph when used. I’ve purchased it about 3 times now.
W**N
Good product, easy to use
I do not hesitate to use this product.
A**R
Works & last a LONG time
We have used a full line of Hot Tub Things product for 3 years. They are simply to use, keep our large spa clean, clear, and balanced. The ph+ product is used very occasionally and one 32 oz has lasted 3 YEARS!
N**U
Does the job
Product worked perfectly fine for my application.
S**N
Shipping Issue
The product itself is fine, but when it arrived, it had spilled into the bag and I lost a bit of the powder.
Trustpilot
5 days ago
2 days ago