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Clorox Pool & Spa

Clorox® Pool&Spa™ Swimming Pool Alkalinity Increaser, Keeps pH Balanced, 5LB (Pack of 1)

  • Based on 4,789 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Feb 1
Order within 21 hours and 27 minutes
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Size: 1 Count (Pack of 1)


Features

  • For Raising Total Alkalinity: The Alkalinity Increaser helps maintain balanced pH levels in your pool water. Proper alkalinity levels reduce the need for frequent maintenance, and our product's granulated formula is easy to apply and dissolves quickly.
  • Improves Swimmer Comfort: This product plays a crucial role in enhancing swimmer comfort by preventing eye and skin irritation caused by unbalanced pH. It helps prevent dry, itchy skin and red, burning eyes, ensuring a more pleasant swimming experience.
  • Protects Pool Equipment from Corrosion: By keeping your pool's pH level balanced, this product helps prevent equipment corrosion, allowing you to spend less time maintaining and more time enjoying your swimming pool.
  • Perfect for All Pools: Clorox Pool&Spa Swimming Pool Chlorine Stabilizer is perfect for new pools, freshly refilled pools and pools that use liquid chlorine.
  • Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App. Solve common swimming pool problems and get personalized product and dosage recommendations.

Description

Clorox Pool&Spa Swimming Pool Alkalinity Increaser, Keeps pH Balanced, 5LB (Pack of 1);12005CLX.

Brand: CLOROX Pool&Spa


Item Weight: 5 Pounds


Item Form: Granular


Product Benefits: Corrosion,Alkalinity Increaser,Skin Irritation


UPC:


Brand: CLOROX Pool&Spa


Item Weight: 5 Pounds


Item Form: Granular


Product Benefits: Corrosion,Alkalinity Increaser,Skin Irritation


UPC: 810821023085


Global Trade Identification Number: 85


Number of Items: 1


Unit Count: 80.0 Ounce


Product Dimensions: 4.4 x 9 x 10.5 inches


Item Weight: 5 pounds


Manufacturer: Clorox Pool&Spa


Item model number: 12005CLX


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Feb 1

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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Similar Products

Top Amazon Reviews

    • Good product, good value.
Size: 1 Count (Pack of 1)
Works great. Great price compared to pool store products.
Reviewed in the United States on December 22, 2025 by Craig H.
    • Great product! Low-cost "alkalinity up" product. New Clorox pool products are great!
Size: 1 Count (Pack of 1)
Great price (if you have free Prime shipping). Great product. Works better than baking soda (won't raise that pH as much), and just as well as the much more expensive alternatives you find for "alkalinity up" at the big chain pool stores. We've found all Clorox brand pool supplies, especially this and the Shock, to be functionally perfect at a much cheaper price than big chain pool store alternatives. Not always available at WalMart, we were happy to find it here on Amazon at about the same cost with quick delivery. Life is better and easier with Amazon Prime. ... show more
Reviewed in the United States on October 5, 2025 by Rich
    • Cost effective
Size: 1 Count (Pack of 1)
Like pH up, this is a basic chemical, no fancy blends of various complicated compounds. So why spend more? These Clorox spa chemicals have been the most cost effective I’ve found. The hardness increaser, pH up and this alkalinity increaser have all been excellent values. They are nicely granulated, and flow without undue caking. For convenience I do refill my original plastic containers from out spa starter kit. But these Clorox products are nearly half the cost of the spa shop and the lowest cost I’ve found so far. Storing the remainder in the resealable bags has not been a problem with shelf life either. Our spa is small so we use small amounts, this stuff will ladt use for a few years. ... show more
Reviewed in the United States on August 2, 2025 by ChemE_75
    • Damaged packaging
Size: 1 Count (Pack of 1)
Review Image by Heath P. Heath P.
Product is good but packaging was damaged on arrival. Thankfully not much spilled out
Reviewed in the United States on May 26, 2025 by Heath P. Heath P.
    • Dissolves easily, works great
Size: 1 Count (Pack of 1)
Review Image by Ron M Ron M
This product worked well to bring down the alkalinity in our in ground pool. We added it to the deep end with the pump running. The product dissolved very easily with no residue accumulation. Very good value compared to the pool store or Home Depot. Highly recommend.
Reviewed in the United States on August 31, 2025 by Ron M Ron M
    • Works as it should
Size: 1 Count (Pack of 1)
Received in good condition. Works as it should.
Reviewed in the United States on November 29, 2025 by Oh Brad
    • Clorox spa and pool water treatment.
Size: 1 Count (Pack of 1)
We've purchased this clorox spa treatment cleaner a few times and every time we use it we can tell the difference the spa water. The product smells clean and is very easy to use per instruction. My spa water color is clear and the product dissolve with in hours. Extremely easy to use and a time saver for sure. ... show more
Reviewed in the United States on September 19, 2025 by EDWARD SAWYER
    • Am important component of pool care
Size: 1 Count (Pack of 1)
this is a necessary component for keeping your pool running as it should... we keep some on hand from Amazon to avoid it being out of stock at some stores.. a plus is the reasonable price, as opposed to being overcharged at a local pool store.
Reviewed in the United States on November 7, 2025 by Richie

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