All products

Pool Chemicals & Water Testing

Chlorine, shock, balancers, algaecides, clarifiers and test kits. Test first, then dose by pool volume in gallons.

Free shipping
Secure checkout
Easy returns

JNW Direct

JNW Direct Water Hardness Test Kit – 150 Strips for Quick, Accurate Readings

$13.95

Free shipping · 30-day easy returns

Sold out

POOLSPARX

POOLSPARX Solar Pool Ionizer – Copper Ionizer for Pools Up to 45,000 Gallons | Solar Powered System

$107.10

Free shipping · 30-day easy returns

AquaChek

AquaChek SPA 6-in-1 Test Strips – 50 Strips for Spa Water Quality (Bromine, Chlorine, pH, Alkalinity, Hardness)

$18.06

Free shipping · 30-day easy returns

Sold out

CAMCLIM

CAMCLIM Solar Pool Ionizer Light – Copper Ionizer, RGB LED, Remote

$124.91

Free shipping · 30-day easy returns

Pool Essentials

Pool Essentials Shock Treatment 24-Pack — Clears Cloudy Water, Fast-Dissolving

$118.06

Free shipping · 30-day easy returns

Terronix

Terronix 7-in-1 Digital Water Tester – Chlorine, pH, Salt, ORP, EC, TDS & Temp Meter for Pools, Spas & Hydroponics

$126.89

Free shipping · 30-day easy returns

BubbyShine

BubbyShine Weekly Pool Treatment 3L — Phosphate Remover, Clarifier, Waterline Cleaner (Saltwater Safe)

$76.96

Free shipping · 30-day easy returns

Sold out

WESHIPTO

WESHIPTO Pool Unit 20k-30k Gallons Black Replacement for Pool RX

$71.48

Free shipping · 30-day easy returns

CLEARVIEW

ClearView Calcium-Free Chlorine Granules (10 Lbs) – 99% Dichlor Pool Shock, Fast-Dissolving Stabilized Sanitizer for Pools, Spas & Hot Tubs

$75.59

Free shipping · 30-day easy returns

Orvex

Orvex T-15 Salt Cell Replacement — Hayward AquaRite/AquaTrol/Pro Logic Compatible, W3T-CELL-15, Up to 40K Gallons

$330.39

Free shipping · 30-day easy returns

Sold out

Paxwrenx

Paxwrenx Solar Pool Ionizer – Up to 45,000 gal | 1lb Copper Anode | Saltwater Compatible

$83.81

Free shipping · 30-day easy returns

MAV AquaDoc

MAV AquaDoc Spa Chlorine for Hot Tubs – 2 lb (2 Pack) Fast Acting Granules | USA Made

$79.70

Free shipping · 30-day easy returns

XtremepowerUS

XtremepowerUS Inline Automatic Chlorinator — 3-Inch 9 lb Inline Chlorine Feeder for Pools (Cl200 Compatible)

$104.30

Free shipping · 30-day easy returns

XtremepowerUS

XtremepowerUS Off-Line Automatic Chlorinator Feeder – 9 lb Tank, Installation Kit for Above Ground & In-Ground Pools

$111.15

Free shipping · 30-day easy returns

AquaDoc Eagle Ray digital analyzer display shows precise spa readings.

Sold out

MAV AquaDoc

Eagle Ray Digital Spa Water Test Kit by AquaDoc — Digital Tester + 30 Strips

$241.35

Free shipping · 30-day easy returns

HOT SPRING SPAS

HOT SPRING SPAS Spa Mineral Silver Ion Ag+ Cartridge Filter Sticks for Hot Tubs

$95.85

Free shipping · 30-day easy returns

WESTAHO

Westaho Salt Chlorine Generator for Above-Ground Pools Up to 15,000 gal | USA Titanium Cells | IP66

$144.77

Free shipping · 30-day easy returns

Baquacil

Baquacil Sanitizer | Chlorine-Free Pool Sanitizer & Algistat (Half Gallon)

$76.96

Free shipping · 30-day easy returns

Swim Central

EZ Pool Concentrated Pool Blend Water Care - 10 lb by Swim Central

$166.00

Free shipping · 30-day easy returns

Yhaofu

Yhaofu CL220 Off-Line Automatic Chlorinator – 9 lb Capacity for Pools & Ponds

$97.51

Free shipping · 30-day easy returns

SpaChoice

SpaChoice 5-Pounds 2-Pack Premium Spa Sanitizing Granules – Chlorine for Hot Tubs (Made in USA)

$152.30

Free shipping · 30-day easy returns

Sold out

YUHAILOU

YUHAILOU EC-520555 Pool Salt Cell — Compatible with Pentair Intellichlor IC40 for 40K Gallon Pools

$1,000.26

Free shipping · 30-day easy returns

Baquacil

Baquacil Sanitizer & Algistat Half-Gallon (4 Pack) – Chlorine-Free Pool Care

$207.11

Free shipping · 30-day easy returns

Optimum Pool Technologies

Optimum Simple Cell Replacement Salt Cell for Hayward Systems – Up to 40,000 Gallons | Optimum Pool Technologies

$822.18

Free shipping · 30-day easy returns

CLOROX Pool&Spa

CLOROX Pool&Spa Active99 3-Inch Chlorinating Tablet - Kills Bacteria & Prevents Algae, 35 lb

$300.59

Free shipping · 30-day easy returns

LEISURE TIME

Leisure Time Spa 56 Chlorinating Granules, 5 lb, 2-Pack | Spa Sanitizer

$96.83

Free shipping · 30-day easy returns

Hot Tub Serum

Hot Tub Serum — Weekly Maintenance All-in-One Cleaner/Clarifier/Softener for Inflatable Hot Tubs (2 L, 24 Doses)

$182.39

Free shipping · 30-day easy returns

SpaChoice

SpaChoice 1.5-Pounds 2-Pack Brominating Tabs – Spa Bromine Tablets, Made in USA

$87.66

Free shipping · 30-day easy returns

SpaChoice

SpaChoice 2-Pounds 2-Pack Premium Spa Sanitizing Granules for Hot Tubs — Made in USA

$52.54

Free shipping · 30-day easy returns

SpaGuard

SpaGuard Brominating Tablets (4.5 lbs) – Organic Bromine for Spa Sanitation

$111.29

Free shipping · 30-day easy returns

Bio-Active BA-CAR-16 bottle pour demonstrates simple dosing for safer pool chemistry.

Bio-Active Products, Inc.

Bio-Active BA-CAR-16 Non Polluting Cyanuric Acid Reducer Powder – 16 oz

$104.36

Free shipping · 30-day easy returns

POOLIFE

Poolife MPT Extra 21 Lbs | Algae Prevention, Water Clarification & Sanitization

$217.37

Free shipping · 30-day easy returns

Hot Tub Things

Hot Tub Things Chlorine Starter Kit – Spa & Jacuzzi Maintenance Essentials

$111.21

Free shipping · 30-day easy returns

Aqua Finesse

AquaFinesse 2L Solution Service Pack Refill Bottle – Clear Water Care

$83.81

Free shipping · 30-day easy returns

Circupool

CircuPool Universal40 Saltwater Chlorinator – 40k Gallon Max Cell, Titanium, 4-Year Warranty

$1,775.61

Free shipping · 30-day easy returns

Pool Mate

Pool Mate 16-Pounds Premium Pool Stabilizer & Cyanuric Acid — Helps Chlorine Last Longer

$75.52

Free shipping · 30-day easy returns

AquaDoc bromine booster granules seal bromide reserves for steady spa sanitation.

MAV AquaDoc

AquaDoc Bromine Tablets & Booster Bundle for Spa Hot Tubs – 1.5 lb Tablets + 1 lb Booster – Made in USA

$70.11

Free shipping · 30-day easy returns

REVIVE!

REVIVE! Pool Phosphate & Algae Remover - 32 oz | Treats 24,000 Gallons

$67.67

Free shipping · 30-day easy returns

LaMotte

LaMotte 4329-H Chlorine/Bromine Plus Phosphate Disk for Spin Lab – Pack of 50

$186.44

Free shipping · 30-day easy returns

SpaChoice

SpaChoice 3.5-Pound Premium Brominating Tabs for Spa Sanitation | Made in USA

$92.72

Free shipping · 30-day easy returns

Chlorine, shock, balancers, algaecides, clarifiers and test kits. Test first, then dose by pool volume in gallons.

Shop by type: Pool Chlorine · Pool Clarifiers & Enzymes · Pool Balancers · Pool Stain Removers · Pool Algaecides · Chlorine-Free Pool Sanitizers · Pool Water Test Kits · Pool Test Strips

More in Pool Cleaning Tools & Chemicals · all categories