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Amazon.com > Patio, Lawn & Garden > Pools, Hot Tubs & Supplies > Cleaning Tools & Chemicals >

Chemicals & Water Testing Products

Subcategories (10)

Bromine

Chlorine

Chlorine Alternatives

Pool Algaecides

Pool Balancers

Pool Clarifiers & Enzymes

Pool Enzymes

Pool Stain Removers

Test Strips

Water Test Kits

Products

#1

5 in 1 TDS Meter PH Tester, 0.01 High Accuracy Digital PH Meter for Water, PH/TDS/EC/Salt/Temp... From MiKoSoRu

Original:

4.8

2,745 Reviews

Adjusted:

4.8

2,745 Reviews

#2

Clorox Pool&Spa 33512CLX Pool Shock XtraBlue (12 1-lb Bags), 12 Pack, White From Clorox

Original:

4.8

3,900 Reviews

Adjusted:

4.8

3,900 Reviews

#3

Cclear Pool Chlorine Floater for 3 inch Chlorine Tablets, 40% Thicker Walls, 7 inch Large Chlorine... From Cclear Pool

Original:

4.8

4,273 Reviews

Adjusted:

4.8

4,059 Reviews

#4

Brilliance for Spas Chlorinating Granules - 2 lb - 2 Pack From Cufsdo

Original:

4.8

313 Reviews

Adjusted:

4.8

313 Reviews

#5

BioGuard Smart Shock From BioGuard

Original:

4.8

1,210 Reviews

Adjusted:

4.8

745 Reviews

#6

BioGuard SilkGuard Complete 3" Chlorinating Tabs (25 lb) From BioGuard

Original:

4.8

752 Reviews

Adjusted:

4.8

752 Reviews

#7

Frog @ease Test Strips From Frog

Original:

4.8

967 Reviews

Adjusted:

4.8

893 Reviews

#8

pH Meter, TDS/pH/Temperature 3-in-1 pH Meter for Water, 0-14 pH Measurement Range Digital pH Meter,... From TyLinnFen

Original:

4.8

1,659 Reviews

Adjusted:

4.8

1,141 Reviews

#9

4 PACK - United Chemical No Mor Problems 1qt NMP-C12 From No Mor Problems

Original:

4.8

509 Reviews

Adjusted:

4.8

509 Reviews

#10

99% Pure SODA ASH (Sodium Carbonate Anhydrous, Washing Soda) From FDC

Original:

4.9

30 Reviews

Adjusted:

4.9

29 Reviews

#11

Leisure Time E5-02 Spa 56 Chlorinating Granules for Spas and Hot Tubs (2 Pack), 5 lb From LEISURE TIME

Original:

0.0

349 Reviews

Adjusted:

4.7

279 Reviews

#12

HTH Spa 86135 Non Chlorine Shock Oxidizer, Spa & Hot Tub Chemical Clears Cloudy Water, 2.25... From HTH

Original:

4.8

178 Reviews

Adjusted:

4.7

157 Reviews

#13

Rx Clear 1-Inch Stabilized Chlorine Tablets | Use As Bactericide, Algaecide, and Disinfectant in... From Rx Clear

Original:

4.7

3,258 Reviews

Adjusted:

4.7

3,258 Reviews

#14

440 Mini Premium Floater Dispenser for Spa, Hot Tub and Small Pools for 1 Inch Chlorine or Bromine... From 440

Original:

4.7

3,637 Reviews

Adjusted:

4.7

3,637 Reviews

#15

SpaPure Granulated Chlorine From SpaPure

Original:

4.7

321 Reviews

Adjusted:

4.7

321 Reviews

#16

Leisure Time 45005A Spa & Hot Tub Test Strips 4-Way Bromine Testers, 50 ct From LEISURE TIME

Original:

4.7

3,060 Reviews

Adjusted:

4.7

3,060 Reviews

#17

SpaGuard Enhanced Shock (2 lb) From SpaGuard

Original:

4.7

8,930 Reviews

Adjusted:

4.7

8,292 Reviews

#18

U.S. Pool Supply Deluxe Pool Chlorine Floater Dispenser - 3" Tablets, 7" Diameter -... From U.S. Pool Supply

Original:

4.7

470 Reviews

Adjusted:

4.7

385 Reviews

#19

SpaPure Alkalinity Increaser 16oz From SpaPure

Original:

4.7

758 Reviews

Adjusted:

4.7

505 Reviews

#20

Clorox Pool&Spa 12105CLX pH Down, 5 lb From Clorox Pool&Spa

Original:

4.7

2,926 Reviews

Adjusted:

4.7

2,926 Reviews

#21

HTH 42049 Swimming Pool Care 1" Chlorine Tabs, Swimming Pool Chlorinating Sanitizer, 1.5lb From HTH

Original:

4.7

3,797 Reviews

Adjusted:

4.7

3,797 Reviews

#22

Robelle 4024 D.E./Diatomaceous Earth Powder for Swimming Pools, 24-Pound From Robelle

Original:

4.7

782 Reviews

Adjusted:

4.7

782 Reviews

#23

In the Swim Super Pool Shock - Pool Sanitizers From In The Swim

Original:

4.7

2,206 Reviews

Adjusted:

4.7

2,121 Reviews

#24

In The Swim Calcium Hardness Increaser - Raises Pool Water Hardness From In The Swim

Original:

4.7

692 Reviews

Adjusted:

4.7

657 Reviews

#25

In The Swim pH Increaser for Pools - Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up From In The Swim

Original:

4.7

2,625 Reviews

Adjusted:

4.7

2,506 Reviews

#26

In The Swim 1 Inch Chlorine Tablets - Pool Sanitizer From In The Swim

Original:

4.7

728 Reviews

Adjusted:

4.7

728 Reviews

#27

7-in-1 Accurate Pool Test Strips - 100 Hot Tub Spa Test Strips - Quick Pool Water Testing Kit -... From Benicci

Original:

4.7

247 Reviews

Adjusted:

4.7

239 Reviews

#28

Vitabath Vita-c-bath Effervescent Vitamin C Dechlorination, 1000 mg, 100 Tablets From Vitabath

Original:

4.7

573 Reviews

Adjusted:

4.7

561 Reviews

#29

SeaKlear Spa System Flush, 1 Pint Bottle From SeaKlear

Original:

4.7

968 Reviews

Adjusted:

4.7

968 Reviews

#30

SpaGuard Enhanced Shock 2lb with Scum Absorber and Hot Tub Care E-Book From LeisureQuip

Original:

4.7

643 Reviews

Adjusted:

4.7

643 Reviews

#31

SpaGuard pH Increaser (18 oz) (3 Pack) From SpaGuard

Original:

4.7

621 Reviews

Adjusted:

4.7

621 Reviews

#32

Clorox Pool&Spa 12004CLX Chlorine Stabilizer, 4 lb, 4lb From Clorox

Original:

4.7

4,252 Reviews

Adjusted:

4.7

3,959 Reviews

#33

All-New 2024 Pool and Spa Test Strips 7 in 1 Quick SuperAccurate Swimming 150 Pool Test Kit - Hot... From bestprod

Original:

4.7

3,610 Reviews

Adjusted:

4.7

3,610 Reviews

#34

HTH Pool Care Shock Advanced, Swimming Pool Chemical Prevents Bacteria & Algae, Cal Hypo... From HTH

Original:

4.7

1,561 Reviews

Adjusted:

4.7

1,561 Reviews

#35

SpaGuard pH Increaser 1.12lb From SpaGuard

Original:

4.7

3,896 Reviews

Adjusted:

4.7

3,896 Reviews

#36

LEISURE TIME 22337A Spa 56 Chlorinating Granules for Hot Tubs, 2 lbs, gray From LEISURE TIME

Original:

4.7

8,352 Reviews

Adjusted:

4.7

4,497 Reviews

#37

Renew Shock Treatment 2.2 Lbs. Non Chlorine From LEISURE TIME

Original:

4.7

4,511 Reviews

Adjusted:

4.7

4,511 Reviews

#38

WWD POOL Floating Pool Chlorine Dispenser Fits 1-3" Tabs Bromine Holder Chlorine Floater... From WWD POOL

Original:

4.7

3,339 Reviews

Adjusted:

4.7

2,825 Reviews

#39

AquaChek Yellow 4-Way Pool and Spa Test Strips - 50 Yellow Test Strips - Swimming Pool Test Strips... From AquaChek

Original:

4.7

10,217 Reviews

Adjusted:

4.7

9,195 Reviews

#40

Milliard Chlorine Floater, Floating Chlorine Dispenser, Large Capacity and Adjustable Release, Fits... From Milliard

Original:

4.7

3,026 Reviews

Adjusted:

4.7

3,026 Reviews

#41

Leisure Time 45010A Test Strips Chemical Tester for Spas and Hot Tubs, Assorted From LEISURE TIME

Original:

4.7

4,138 Reviews

Adjusted:

4.7

4,138 Reviews

#42

Oh Yuk Healthy Hot Tub Cleaner, The Most Effective Hot Tub Cleaner for Indoor and Outdoor Hot Tubs... From Oh Yuk

Original:

4.7

478 Reviews

Adjusted:

4.7

134 Reviews

#43

SpaChoice 472-3-1041 Defender Defense for Hot Tub, 1-Quart From SpaChoice

Original:

4.7

132 Reviews

Adjusted:

4.7

132 Reviews

#44

Clorox Pool&Spa XtraBlue 1" Chlorinating Tablets 3.75 lb From CLOROX Pool&Spa

Original:

4.7

100 Reviews

Adjusted:

4.7

95 Reviews

#45

Semlos Pool Chlorine Floater with 8 Color-Changing LED Lights - Solar Powered, Fits 1" and... From Semlos

Original:

5.0

22 Reviews

Adjusted:

5.0

17 Reviews

#46

Nature2 Hot Tub Spa Mineral Stick Cartridge Sanitizer Purifier Zodiac From Nature2

Original:

4.8

42 Reviews

Adjusted:

4.8

42 Reviews

#47

FROG @ease In-Line SmartChlor Replacement Chlorine Cartridge for use in Marquis Spas, Caldera Spas,... From FROG

Original:

4.6

358 Reviews

Adjusted:

4.6

298 Reviews

#48

Spa Stain and Scale Control for Hot Tubs, Scale Metal & Stain Control for Hot Tubs, Prevent... From MAV AquaDoc

Original:

4.6

736 Reviews

Adjusted:

4.6

669 Reviews

#49

HTH 42033 Super 3" Tablets Swimming Pool Chlorine, 5 lbs From HTH

Original:

4.6

15,387 Reviews

Adjusted:

4.6

14,361 Reviews

#50

Robelle 2808B Calcium Hardness Increaser for Pools, 8-Pounds From Robelle

Original:

4.6

972 Reviews

Adjusted:

4.6

972 Reviews