Skip to content
Pause slideshow
Play slideshow
Free shipping
On all orders over $100
Hassle-free returns
30-day postage paid returns
icon-X
Close menu
Spas & Coldtubs
Arctic Spas
All Weather Pool Swim Spas
Coldtubs
Spa Products
Spa Chemicals
Spa Covers
Spa Parts
Spa Accessories
Used Hot Tubs
Chemicals
Water Balancers
pH & Alkalinity Balancers
Calcium Balancers
Stabilizers & Conditioners
Algae Control
Chlorine and Bromine
Shock
Alternative Sanitizers
Specialty Chemicals
Clarifiers
Cleaners
Phosphate Removers
Metal & Scale Inhibitors
Water Testing
Spa Chemicals
Maintenance Equipment
Pool & Spa Brushes
Nets & Vacuums
Hoses
Poles
Water Testing
Maintenance Equipment Parts
Parts
Automatic Pool Cover Parts
Cleaner Parts
Control System Parts
Filter Media (Sand, Grids, Cartridges)
Filter Parts
Filters
Heater Parts
Lighting Parts
Maintenance Equipment Parts
Plumbing
Pump Parts
Skimmer Parts
Spa Parts
Spa Jets
Spa Heaters
Spa Audio Parts
Spa Lighting Parts
Exterior Spa Parts
Spa Pillows
Spa Accessories
Spa Cover Parts
Hose
Spa Filter Parts
Valve Parts
Water Feature Parts
Water Sanitizer Parts
Parts Diagrams
Zodiac/Polaris Cleaners
Pentair Whole Goods
Maytronics Dolphin Cleaners
Other Whole Goods
YETI
Coolers
Hard Coolers
Soft Coolers
Lunch Bags & Boxes
Cooler Accessories
Drinkware
Tumblers
Bottles & Jugs
Wine & Barware
Mugs
Colster Can Coolers
Drinkware Accessories
Apparel
Bags, Boxes, & Buckets
Camping Gear
Dog Bowls
Services
Local Hot Tub Service & Repair
Swimming Pool Repair Services
Swimming Pool & Spa Weekly Maintenance
Swimming Pool Openings
Swimming Pool Closings
Vinyl Liner Replacements
Pool & Spa Covers
Customer Guides
About Us
Store Hours
Contact Us
Blog
Log in
instagram
Instagram
Facebook
YouTube
X
Cart
icon-X
Close cart
Your cart is currently empty.
Spas & Coldtubs
Arctic Spas
All Weather Pool Swim Spas
Coldtubs
Spa Products
Spa Chemicals
Spa Covers
Spa Parts
Spa Accessories
Used Hot Tubs
Chemicals
Water Balancers
pH & Alkalinity Balancers
Calcium Balancers
Stabilizers & Conditioners
Algae Control
Chlorine and Bromine
Shock
Alternative Sanitizers
Specialty Chemicals
Clarifiers
Cleaners
Phosphate Removers
Metal & Scale Inhibitors
Water Testing
Spa Chemicals
Maintenance Equipment
Pool & Spa Brushes
Nets & Vacuums
Hoses
Poles
Water Testing
Maintenance Equipment Parts
Parts
Automatic Pool Cover Parts
Cleaner Parts
Control System Parts
Filter Media (Sand, Grids, Cartridges)
Filter Parts
Filters
Heater Parts
Lighting Parts
Maintenance Equipment Parts
Plumbing
Pump Parts
Skimmer Parts
Spa Parts
Spa Jets
Spa Heaters
Spa Audio Parts
Spa Lighting Parts
Exterior Spa Parts
Spa Pillows
Spa Accessories
Spa Cover Parts
Hose
Spa Filter Parts
Valve Parts
Water Feature Parts
Water Sanitizer Parts
Parts Diagrams
Zodiac/Polaris Cleaners
Pentair Whole Goods
Maytronics Dolphin Cleaners
Other Whole Goods
YETI
Coolers
Hard Coolers
Soft Coolers
Lunch Bags & Boxes
Cooler Accessories
Drinkware
Tumblers
Bottles & Jugs
Wine & Barware
Mugs
Colster Can Coolers
Drinkware Accessories
Apparel
Bags, Boxes, & Buckets
Camping Gear
Dog Bowls
Services
Local Hot Tub Service & Repair
Swimming Pool Repair Services
Swimming Pool & Spa Weekly Maintenance
Swimming Pool Openings
Swimming Pool Closings
Vinyl Liner Replacements
Pool & Spa Covers
Customer Guides
About Us
Store Hours
Contact Us
Blog
account
Log in
icon-search
Search
icon-hamburger
Site navigation
Cart
Search
Search
Chemicals
Filter
Filter
Refine
view all
Product Type
Search
Spa Products
Chemicals
clear
Brand
Search
BioGuard
Chemical Type
Search
Water Balancers
Spa Chemicals
Water Balancers
Search
Calcium Balancers
pH & Alkalinity Balancers
clear
Apply
Brand
BioGuard
(2)
Tags
balancers
(2)
bioguard
(2)
calcium-balancers
(2)
chemicals-1
(2)
ph-alkalinity
(1)
ph-balancers
(1)
spa
(1)
spa-chemicals
(1)
spa-products
(1)
Filter
icon-X
Close menu
Filter
Filter
Refine
view all
Product Type
Search
Spa Products
Chemicals
clear
Brand
Search
BioGuard
Chemical Type
Search
Water Balancers
Spa Chemicals
Water Balancers
Search
Calcium Balancers
pH & Alkalinity Balancers
clear
Apply
Brand
BioGuard
(2)
Tags
balancers
(2)
bioguard
(2)
calcium-balancers
(2)
chemicals-1
(2)
ph-alkalinity
(1)
ph-balancers
(1)
spa
(1)
spa-chemicals
(1)
spa-products
(1)
Pool and Spa Chemicals
icon-filter
Filter
2 products
Sort
Sort
Featured
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old
SpaGuard Calcium Hardness Increaser (12oz)
$7.99
Bioguard Balance Pak 300 (12lb)
$30.99
Enter
Invalid Password
icon-X
"Close (esc)"
icon-X
icon-chevron
icon-X
Chemicals
Sort By
Featured
Price: Low to High
Price: High to Low
Newest
Newest Last
Best Selling
A to Z
Z to A
