Search  for anything...

SpaGuard Balance pH Increaser for Spas & Hot Tubs, 18 oz (1.12 lbs/510 g)

  • Based on 5,319 reviews
Condition: New
Checking for the best price...
$14.45 Why this price?
Save $2.53 was $16.98

Buy Now, Pay Later


As low as $3 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Oct 25
Order within 2 hours and 59 minutes
Available payment plans shown during checkout

Item Package Quantity: 1


Size: 1.12 Pound (Pack of 1)


Features

  • Protects corrosion of equipment due to low pH
  • Balances water for bather comfort
  • Protects your spa or hot tub from corrosion due to low pH
  • SpaGuard pH Increaser is a dry, granular product that gradually raises your pH level

Description

Raises the pH

Brand: SpaGuard


Item Weight: 1.1 Pounds


Item Form: Granular


Product Benefits: Prevents corrosion and helps increase pH levels in spas hot tubs


UPC:


Brand: SpaGuard


Item Weight: 1.1 Pounds


Item Form: Granular


Product Benefits: Prevents corrosion and helps increase pH levels in spas hot tubs


UPC: 017541422406


Unit Count: 18.0 Ounce


Product Dimensions: 3 x 3 x 10 inches


Item Weight: 1.1 pounds


Manufacturer: SpaGuard


Item model number: BIO42240


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 25

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good Product and price
Item Package Quantity: 1 Size: 18 Oz
Works great in my Hot TUB only problem I had was 2 out of 3 containers were hard!! Had to break it up before putting in tub!
Reviewed in the United States on July 17, 2025 by Andrew

  • Works well
Item Package Quantity: 1 Size: 1.12 Pound (Pack of 1)
Great product and works well
Reviewed in the United States on July 29, 2025 by F.Miller

  • Effective pH Increaser at a Great Price
Item Package Quantity: 1 Size: 1.12 Pound (Pack of 1)
I’ve been using SpaGuard Balance pH Increaser for a while now, and it works great for my hot tub! It’s super effective at adjusting the pH levels, keeping the water balanced and comfortable. What I really appreciate is the great price for the 18 oz bottle – it lasts a while and does exactly what it’s supposed to. This product is a must-have for anyone with a hot tub, and I’ve had no issues with it. Highly recommend if you’re looking for an affordable and reliable pH increaser! ... show more
Reviewed in the United States on February 19, 2025 by Bob D.

  • Easy to use
Item Package Quantity: 1 Size: 1.12 Pound (Pack of 1)
Works great
Reviewed in the United States on July 17, 2025 by Jodi Swinehart

  • Good Price
Item Package Quantity: 1 Size: 1.12 Pound (Pack of 1)
Decent price. Received quickly.
Reviewed in the United States on May 14, 2025 by PLee

  • Very nice product!
Item Package Quantity: 1 Size: 1.12 Pound (Pack of 1)
Very nice product!
Reviewed in the United States on August 26, 2025 by Martin Levario

  • No gross bubbles ever
Item Package Quantity: 1 Size: 1.12 Pound (Pack of 1)
Keeps my hottub squeaky clean
Reviewed in the United States on July 25, 2025 by christopher cyphert

  • Does exactly what it's supposed to do
Item Package Quantity: 1 Size: 1.12 Pound (Pack of 1)
The pH in our spa always drops after usage and this easily does the trick to bump it back up. Highly recommend!
Reviewed in the United States on May 30, 2025 by Freedom Lover

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...