Hard Water Testing(19)
Uses item details. Price when purchased online
6-in-1 Pool Water Test Strips, Measures Free Chlorine, pH, Alkalinity, Hardness, Cyanuric Acid, and Bromine for Spas and Pools $2.99 Was $8.99

Now$299
current price Now $2.99, Was $8.99$8.99
6-in-1 Pool Water Test Strips, Measures Free Chlorine, pH, Alkalinity, Hardness, Cyanuric Acid, and Bromine for Spas and Pools
14-in-1 Water Quality Test Strips, 50-Count, for Swimming Pool, Hot Tub, Spa, and Drinking Water Comprehensive Testing Was $14.99

14-in-1 Water Quality Test Strips, 50-Count, for Swimming Pool, Hot Tub, Spa, and Drinking Water Comprehensive Testing
Clearance LEHOZIHEQ 50 Strips Pool Test Strips, 6-in-1 50 Strips Accurate&Easy Water Chemical Testing Strip for Pool, Pool Test Strips Testing Kit From $6.20
From$620
LEHOZIHEQ 50 Strips Pool Test Strips, 6-in-1 50 Strips Accurate&Easy Water Chemical Testing Strip for Pool, Pool Test Strips Testing Kit
6-in-1 Pool Water Test Strips, 50-Count, pH and Chemical Test Paper for Swimming Pool Water Quality Monitoring Was $11.99

6-in-1 Pool Water Test Strips, 50-Count, pH and Chemical Test Paper for Swimming Pool Water Quality Monitoring
AquaChek Select Connect 7-in-1 Test Strip Kit, 50 Count

AquaChek Select Connect 7-in-1 Test Strip Kit, 50 Count
484.6 out of 5 Stars. 48 reviews
AquaChek 552244-02 6-in-1 Test Strips for Spas and Hot Tubs, 50-Count, 2-Pack

AquaChek 552244-02 6-in-1 Test Strips for Spas and Hot Tubs, 50-Count, 2-Pack
35 out of 5 Stars. 3 reviews
Poolmaster Dual Test Kit $12.55

$1255
current price $12.55Poolmaster Dual Test Kit
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AquaChek 552244 6-in-1 Spa Hot Tub Easy to Use Test Strips Kit, 50 Strip Bottle $15.99

$1599
current price $15.99AquaChek 552244 6-in-1 Spa Hot Tub Easy to Use Test Strips Kit, 50 Strip Bottle
224.7 out of 5 Stars. 22 reviews
AquaChek TruTest Spa Refill Test Strips Was $25.24

AquaChek TruTest Spa Refill Test Strips
25 out of 5 Stars. 2 reviews
Aquachek TruTest Strips For Digital Reader for Swimming Pools, 50 Strips

Aquachek TruTest Strips For Digital Reader for Swimming Pools, 50 Strips
15 out of 5 Stars. 1 reviews
Aquachek Red Bromine Test Strips for Pools and Spas, 50 Strips

Aquachek Red Bromine Test Strips for Pools and Spas, 50 Strips
164.4 out of 5 Stars. 16 reviews
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Aquachek Select 7-in-1 Test Strips for Swimming Pools, 50 Strips $43.95

$4395
current price $43.95Aquachek Select 7-in-1 Test Strips for Swimming Pools, 50 Strips
Leisure Time 45005A Spa and Hot Tub Bromine 4 Way Test Strips (50 Count) $18.95

$1895
current price $18.95Leisure Time 45005A Spa and Hot Tub Bromine 4 Way Test Strips (50 Count)
74.7 out of 5 Stars. 7 reviews
Aquachek White Salt for Swimming Pools, 10 Strips

Aquachek White Salt for Swimming Pools, 10 Strips
104.3 out of 5 Stars. 10 reviews
Lamotte 1749 SAL/EC/TDS TEMP TRACER $183.75 Was $207.04

Now$18375
current price Now $183.75, Was $207.04$207.04
Lamotte 1749 SAL/EC/TDS TEMP TRACER
11 out of 5 Stars. 1 reviews
AquaChek 561140A Salt Water Swimming Pool Test Strips

AquaChek 561140A Salt Water Swimming Pool Test Strips
Aquachek Yellow Chlorine Test Strips for Swimming Pools, 50 Strips $12.53

$1253
current price $12.53Aquachek Yellow Chlorine Test Strips for Swimming Pools, 50 Strips
924.6 out of 5 Stars. 92 reviews
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AquaChek 511244-02 Yellow Free Chlorine Test Strips for Swimming Pools, 50-Count, 2-Pack

AquaChek 511244-02 Yellow Free Chlorine Test Strips for Swimming Pools, 50-Count, 2-Pack
15 out of 5 Stars. 1 reviews
Poolmaster Smart Test 6-Way Test Strips

2 options
Available in additional 2 optionsPoolmaster Smart Test 6-Way Test Strips
55 out of 5 Stars. 5 reviews
Other options to consider(14)
AquaChek 521253-02 Red Total Bromine Test Strips for Swimming Pools, 50-Count, 2-Pack Was $25.23

AquaChek 521253-02 Red Total Bromine Test Strips for Swimming Pools, 50-Count, 2-Pack
AquaChek One-Minute Phosphate Test for Swimming Pools $14.42

$1442
current price $14.42AquaChek One-Minute Phosphate Test for Swimming Pools
AquaChek One-Minute Phosphate Test for Swimming Pools $13.18

$1318
current price $13.18AquaChek One-Minute Phosphate Test for Swimming Pools
135 out of 5 Stars. 13 reviews
AQUACHEK 3-In-1 Blue Biguanide Test Strip 25 Count 561625A

AQUACHEK 3-In-1 Blue Biguanide Test Strip 25 Count 561625A
Poolmaster 1/2oz. OTO and Phenol Red Replacement Indicator Solutions $8.71 Was $9.93 $8.71/oz

Now$871
current price Now $8.71, Was $9.93$9.93
$8.71/oz
Poolmaster 1/2oz. OTO and Phenol Red Replacement Indicator Solutions
15 out of 5 Stars. 1 reviews
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Poolmaster Replacement Indicator Solutions #1 and #2 $11.37

$1137
current price $11.37Poolmaster Replacement Indicator Solutions #1 and #2
33.7 out of 5 Stars. 3 reviews
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Pool Mate Chlorine Jumbo Tabs $169.99

$16999
current price $169.99Pool Mate Chlorine Jumbo Tabs
44.3 out of 5 Stars. 4 reviews
Spa Choice Chlorine Granules for Spas and Hot Tubs From $64.99

4 options
Available in additional 4 optionsFrom$6499
Spa Choice Chlorine Granules for Spas and Hot Tubs
204.5 out of 5 Stars. 20 reviews
Arch Chemicals Leisure Time Renew Non Chlorine Shock for Spas and Hot Tubs, 2.2 Pounds $24.00 Was $32.45 $10.91/oz

Now$2400
current price Now $24.00, Was $32.45$32.45
$10.91/oz
Arch Chemicals Leisure Time Renew Non Chlorine Shock for Spas and Hot Tubs, 2.2 Pounds
294.8 out of 5 Stars. 29 reviews
Spa Choice Chlorine Granules for Spas and Hot Tubs

3 options
Available in additional 3 optionsSpa Choice Chlorine Granules for Spas and Hot Tubs
25 out of 5 Stars. 2 reviews
Pool Mate 3" Chlorine Tabs for Swimming Pools

Pool Mate 3" Chlorine Tabs for Swimming Pools
93.9 out of 5 Stars. 9 reviews
Clearance Water Quality Test Strips, Multi-Parameter Home Water Testing Kit for Drinking Water Well and Pool, Liquid Testing Strips (100-Count), Blue From $4.99
From$499
Water Quality Test Strips, Multi-Parameter Home Water Testing Kit for Drinking Water Well and Pool, Liquid Testing Strips (100-Count), Blue
Leisure Time Spa Up for Spas and Hot Tubs, 2 Pounds 1-Pack

Leisure Time Spa Up for Spas and Hot Tubs, 2 Pounds 1-Pack
93.9 out of 5 Stars. 9 reviews
Spa Choice Increase Calcium for Spas and Hot Tubs

3 options
Available in additional 3 optionsSpa Choice Increase Calcium for Spas and Hot Tubs
15 out of 5 Stars. 1 reviews
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