Bio Ouster Hot Tub Water Balancing Kit – Spa pH Up, pH Down, Alkalinity Increaser, Calcium Hardness Increaser & Test Strips – Spa Chemicals Starter Kit for Inflatable & Acrylic Hot Tubs – Made in USA
$39.97
Related Products
Product description
Shop Ouster Products
Add to Cart
Customer Reviews
4.6 out of 5 stars 70
4.4 out of 5 stars 532
4.4 out of 5 stars 5,203
4.4 out of 5 stars 815
4.2 out of 5 stars 64
4.4 out of 5 stars 114
4.4 out of 5 stars 381
Price
$39.97$39.97
$47.98$47.98
$31.98$31.98
$19.98$19.98
$15.98$15.98
$18.38$18.38
$23.98$23.98
Size Options
Kit
Kit
8oz, 16oz, 32oz
2oz, 8oz
32oz
16oz
32oz
Use
Water Balancing
Complete Kit for Hot Tub
Weekly Care & Maintenance
Deep Clean for Plumbing & Jets
Deep Clean for Filters
Surface Cleaner for Hot Tub
Weekly Treatment for Water
Frequency
Weekly
Weekly & Quarterly
Every 7 Days
Every 3-4 Months
Every 3-4 Months
As Needed
Weekly
Fast Acting & Maximum Strength
✔
✔
✔
✔
✔
✔
✔
Works on All Tub Types
✔
✔
✔
✔
✔
✔
✔
Professional Grade Formula
✔
✔
✔
✔
✔
✔
✔
Extends Spa Life
✔
✔
✔
✔
✔
✔
✔
Made in
USA
USA
USA
USA
USA
USA
USA
COMPLETE SPA WATER BALANCE KIT – Includes pH Up, pH Down, Alkalinity Increaser, Calcium Hardness Increaser, and 50 pH Test Strips. Everything you need to balance and maintain hot tub water clarity and comfort.
EASY TO USE, FAST-ACTING FORMULAS – Quickly adjust and stabilize pH, alkalinity, and calcium hardness. Designed for all hot tub types: acrylic, inflatable, and wood.
IMPROVES COMFORT & EQUIPMENT LIFE – Prevents scale buildup, corrosion, and cloudy water while enhancing sanitizer effectiveness and protecting spa components.
ACCURATE SPA TEST STRIPS INCLUDED – Test water levels instantly and get clear results for pH, alkalinity, and calcium. Ideal for beginners and pros. Compatible with chlorine, bromine, ozone, salt water & more.
MADE IN THE USA, LAB-TESTED FORMULAS – Premium, pro-grade water care backed by science. Follow up with Ouster 3-in-1 Weekly Care for long-term water clarity and softness. Soak in confidence.
8 reviews for Bio Ouster Hot Tub Water Balancing Kit – Spa pH Up, pH Down, Alkalinity Increaser, Calcium Hardness Increaser & Test Strips – Spa Chemicals Starter Kit for Inflatable & Acrylic Hot Tubs – Made in USA
Add a review
$39.97
Jesse Franklin –
Excellent Product
Simple & Easy to USA & it works!
Amazon Customer –
Great hot tub chemicals
It works great and very easy to use.
Cynthia Berry –
💯
We love the prices
Allison039 –
Perfect hot tub water balancing kit!!
I’m so glad I found the Bio Ouster Hot Tub Water Balancing Kit! The kit includes everything you need — pH up, pH down, alkalinity increaser, calcium hardness increaser, and easy-to-use test strips. I was nervous about balancing my hot tub water at first, but the instructions are super clear and it made the whole process really simple. After just a couple of days, my water went from cloudy and dull to crystal clear and perfect. Highly recommend this kit for anyone with an inflatable or acrylic hot tub. It’s a total game changer!
Emily Wysocki –
Great value for the $$
Works great for my inflatable hot tub. Much cheaper than the ones at the store
Valerie –
A good buy to have what is needed
Nice set for my hot tub.
Victor r. –
Fast shipping, great items
It was fast shipping and the quality of the chemicals are great. They regulate my spa water to specs and the test strips are accurate
Deb Newman –
Works
Will purchase again