Best valueSold out
Pool and Spa Collections
The products our customers reach for again and again, sorted by brand.
-
Sold outBioGuard Zero Phos Powerful Phosphate Remover, 1 Quart, Single Pack$30.99Out of stock
-
Sold outBioGuard Stow Away Cleaner & Deodorizer for Pool Cover, 1 Quart, 4 Pack$83.96
$159.92Out of stock -
Sold outBioGuard Stow Away Cleaner & Deodorizer for Pool Cover, 1 Quart, 2 Pack$41.98Out of stock
-
Sold outBioGuard Stabilizer 100 Chlorine Stablizer, 5 lb, Single Pack$43.99
$44.99Out of stock -
Sold outBioGuard Stabilizer 100 (1.75 lb)$23.99Out of stock
-
Sold outBioGuard Super Soluble Chlorine, 5 lb, 1 Pack$63.99Out of stock
-
Sold outBioGuard Strip Kwik Degreasing Filter Cleaner, 1 Quart, Single Pack$20.99
$24.39Out of stock -
Sold outBioGuard Stow Away Cleaner & Deodorizer for Pool Cover, 1 Quart, Single$20.99Out of stock
-
Sold outBioGuard Skim Mor, Skimmer Sock, 2 Pack$41.98Out of stock
-
Sold outBioGuard SilkGuard Complete Chlorinating Sticks, 18 lb, Single Pack$159.99Out of stock
-
Sold outBioGuard Pool Complete Weekly, 1 Liter, Single Pack$25.99
$29.99Out of stock -
Sold outBioGuard Lo 'N Slo Granular pH Decreaser, 8 lb, 2 Pack$39.99Out of stock
Best valueSold out
-
Sold outSpaGuard Brominating Tablets, 1.5 lb, 2 Pack$67.98Out of stock
-
Sold outSpaGuard Brominating Tablets, 1.5 lb, Single Pack$32.99
$33.99Out of stock -
Sold outSpaGuard Enhanced Shock, 2 lb, 4 Pack$87.96
$99.99Out of stock -
Sold outSpaGuard Enhanced Shock, 2 lb, 3 Pack$65.97
$79.99Out of stock -
Sold outSpaGuard Stain and Scale Control (1 qt)$29.99Out of stock
-
Sold outSpaGuard Spa Water Clarifier, 1 Pint, 2 Pack$27.98
$30.68Out of stock -
Sold outSpaGuard Filter Cleaner for Spas & Hot Tubs, 1 Quart, Single Pack$23.49
$24.49Out of stock -
Sold outSpaGuard Brominating Tablets, 1.5 lb, Single Pack$32.99
$33.99Out of stock -
Sold outSpaGuard Brominating Concentrate for Spas & Hot Tubs, 14 oz, Single Pack$18.99Out of stock
-
Sold outSpaGuard Spa Chlorinating Concentrate, 2 lb, Single Pack$31.99Out of stock
-
Sold outSpaGuard pH Decreaser, 22 oz, Single Pack$9.99
$14.99Out of stock -
Sold outSpaGuard Stain & Scale Control for Spas & Hot Tubs, 1 Quart, 3 Pack$89.97Out of stock
Why buy from us
Sealed, in Date, Straight From the Manufacturer
Pool chemicals lose strength sitting on a shelf, and the grey market is full of repackaged tubs with no lot code on them. Everything we ship arrives factory sealed, with the lot number and expiry printed on the label.
If a product ever turns up short dated, tell us and we will replace it.
About ProstarShop by Category
Every chemical you need, sorted the way pool owners actually shop.
-
Water BalancerspH, alkalinity, calcium
-
SanitizersChlorine, bromine, tablets
-
Algae ControlKillers and preventatives
-
ShockWeekly and rescue doses
-
Salt Pool CareBuilt for saltwater systems
-
Cleaners and Filter CareFilters, surfaces, stains
-
Off SeasonClosing and cover care
-
Spa and Hot TubThe full SpaGuard range
Need help choosing?
Get personalized guidance or test your water so you can treat with confidence.
Shop by water problemFind solutions for cloudy water, algae, and more.
Send your water testOur experts analyze and recommend the right products.
Ask a pool expertReal people. Real answers. We're here to help.
Stock Up Before the Season Turns
What you put in the water now decides how much work opening day is going to be.
- 1% offSold out
- Sold out
- Sold out
- Sold out
- Sold out
- Sold out
- Sold out
- 30% offSold out
- Sold out
- 18% offSold out
- Sold out
- Sold out
- Sold out
- Sold out
- 30% offSold out
- Sold out
- Sold out
- Sold out
- Sold out
What is Your Water Doing?
Tell us what you are looking at and we will point you at the fix. No chemistry degree required.
-
Cloudy or milkyYou can see the water but not the bottom. Usually fine particles slipping straight through the filter.
Clarifiers and filter aids -
Green, or turning greenAlgae has taken hold. Move fast, it doubles overnight in warm water.
Algaecides and shock -
Itchy skin or red eyesAlmost never the chlorine. It is pH or alkalinity sitting outside the safe range.
pH and alkalinity balancers -
Scale or stains on the wallsChalky white crust or brown patches at the waterline mean hard water or metals.
Stain and scale control -
Chlorine will not holdYou add it, you test, it is gone. Sunlight or phosphates are burning through it.
Stabilizer and phosphate removers -
Closing it for the seasonWhat you put in now decides how much work April is going to be.
Winterizing and cover care
Brands We Stock
The names your pool technician already trusts, sourced straight from the manufacturer.
Not sure what you need
Send Us Your Water Test and We will Read it For You
Photograph your test strip or paste your numbers into an email. We will tell you what is out of range, what to add, and in what order, so you are not buying three products to solve one problem.
Ask a question
Why Prostar Pool Supply?
Your authorized source for professional pool and spa care.
-
Authorized dealer
Trusted by BioGuard & SpaGuard
-
Professional quality
Premium products pool pros use
-
Fast & reliable
Carefully packed and shipped with speed
-
Expert support
Real guidance from pool-care experts
What Pool Owners Tell Us
Reviews from customers who bought from this store.
Test twice a week in summer
Chlorine burns off fastest in exactly the weeks you want to swim. Two strips a week catches a problem while it is still a twenty dollar fix instead of a weekend of shocking.
Shock the morning after heavy rain
Rain dilutes your chlorine and washes phosphates in off the deck and the lawn. One dose the next morning stops the green before it has anywhere to start.
Brush the walls before you vacuum
Algae grips the surface, it does not float. Vacuuming without brushing first just moves clean water around while the problem stays exactly where it was.
Questions We Get a Lot
Still stuck? Our team answers by email within one business day.
Are these genuine BioGuard and SpaGuard products?
Yes. Every product ships sealed from the manufacturer with current lot codes and expiry dates. We do not sell repackaged or relabelled chemicals.
How fast will my order arrive?
Orders placed before 2pm on a business day ship the same day. Most deliveries land in three to five business days. Shipping is free over $150 and a flat $9.95 under that.
Which chlorine should I use, tablets or granular?
Tablets dissolve slowly and hold a steady level week to week, so they suit routine care. Granular works fast and is what you reach for after heavy rain, a party, or an algae bloom. Most pools run tablets as the base and keep granular on hand.
Can I ship pool chemicals by air or overseas?
Most sanitizers and shock are classed as oxidisers, so they travel by ground only and cannot go by air. Any restrictions show at checkout once you enter your address.
What if I ordered the wrong product?
Unopened products can be returned within 30 days. Chemicals cannot be returned once the seal is broken, for safety reasons. Message us before you open anything you are unsure about and we will help you work out what you actually need.