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Sponsored
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$307.41
Extech CL200 Exstik Waterproof Chlorine Meter
Amazon.com
40
Free shipping
$307.41
Extech CL200 Exstik Waterproof Chlorine Meter
Amazon.com
40
$711.00
Hach DR300 Pocket Colorimeter, Chlorine, Free + Total, LR/HR, Waterproof, Portable, For Reliable Water Quality Testing, Easy-To-Use Interface, Large
Amazon.com
30
Free shipping
$711.00
Hach DR300 Pocket Colorimeter, Chlorine, Free + Total, LR/HR, Waterproof, Portable, For Reliable Water Quality Testing, Easy-To-Use Interface, Large
Amazon.com
30
$1,118.70
Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
Amazon.com
37
Free shipping
25% off
$1,118.70
Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
Amazon.com
37
$468.00
RKI 04 Series Single Gas Toxic Monitor, Chlorine (Cl2) 0 - 20.00 Ppm
Activated Carbon Depot
$468.00
RKI 04 Series Single Gas Toxic Monitor, Chlorine (Cl2) 0 - 20.00 Ppm
Activated Carbon Depot
$39.99
$45.99
Tilswall Swimming Pool Tester, 2-In-1 Chlorine & PH Meter
Tilswall US
13% off
$39.99
$45.99
Tilswall Swimming Pool Tester, 2-In-1 Chlorine & PH Meter
Tilswall US
$3,791.00
Hach Cl17sc Colorimetric Chlorine Analyzer With Standpipe Install Kit For Free Chlorine 8572700
Core & Main
$3,791.00
Hach Cl17sc Colorimetric Chlorine Analyzer With Standpipe Install Kit For Free Chlorine 8572700
Core & Main
$711.00
Hach DR300 Pocket Colorimeter Chlorine Dioxide With Box LPV445.97.51110
Core & Main
$711.00
Hach DR300 Pocket Colorimeter Chlorine Dioxide With Box LPV445.97.51110
Core & Main
$5,466.00
Hach Ultra Low Range (ULR) Cl17sc Chlorine Analyzer With Standpipe Kit 9790200
Core & Main
$5,466.00
Hach Ultra Low Range (ULR) Cl17sc Chlorine Analyzer With Standpipe Kit 9790200
Core & Main
$433.52
PCE Instruments PCE-CHT 10, Water Analysis Meter Chlorine Tester
Selectum
$433.52
PCE Instruments PCE-CHT 10, Water Analysis Meter Chlorine Tester
Selectum
$711.00
Hach DR300 Chlorine (Free And Total) Pocket Colorimeter LPV445.97.00110
Core & Main
30
$711.00
Hach DR300 Chlorine (Free And Total) Pocket Colorimeter LPV445.97.00110
Core & Main
30
$8,868.00
Hach Single Parameter Monitoring Panel For Chlorine With SC4500 And Cl17sc SPMP-CL
Core & Main
$8,868.00
Hach Single Parameter Monitoring Panel For Chlorine With SC4500 And Cl17sc SPMP-CL
Core & Main
$334.11
ITS 486201-KM Pool Exact EZ Photometer Master Pool Test Kit | 10 Parameters - F/C/T Chlorine, Ph, Alkalinity, Calcium, Cyanuric, Copper, Salt, &
Amazon.com
24
Free shipping
$334.11
ITS 486201-KM Pool Exact EZ Photometer Master Pool Test Kit | 10 Parameters - F/C/T Chlorine, Ph, Alkalinity, Calcium, Cyanuric, Copper, Salt, &
Amazon.com
24
$8,612.00
Hach Clt10sc Analyzer With 2-Input SC4500 Controller No Ph Probe Total Chlorine LXV525.97KTO029
Core & Main
$8,612.00
Hach Clt10sc Analyzer With 2-Input SC4500 Controller No Ph Probe Total Chlorine LXV525.97KTO029
Core & Main
$437.90
PCE Instruments PCE-CHT 10, Water Analysis Meter Chlorine Tester
PrimeLabMed
$437.90
PCE Instruments PCE-CHT 10, Water Analysis Meter Chlorine Tester
PrimeLabMed
$75.99
$183.99
Easy Pool Water Tester PH And Chlorine Level Meter
luxicro
14-day returns (most items)
58% off
$75.99
$183.99
Easy Pool Water Tester PH And Chlorine Level Meter
luxicro
14-day returns
$6,281.00
GF Piping Systems 3-4630-23, 4630 Free Chlorine Analyzer System 0.05 To 5 Ppm
Selectum
$6,281.00
GF Piping Systems 3-4630-23, 4630 Free Chlorine Analyzer System 0.05 To 5 Ppm
Selectum
$6,473.00
GF Piping Systems 3-4630-14, Type 4630 Free Chlorine Analyzer System, 0.02-2 Ppm, 100 - 240 VAC
Selectum
$6,473.00
GF Piping Systems 3-4630-14, Type 4630 Free Chlorine Analyzer System, 0.02-2 Ppm, 100 - 240 VAC
Selectum
$157.00
Hach Chlorine (Total) Test Kit Model CN-65 225401
Core & Main
$157.00
Hach Chlorine (Total) Test Kit Model CN-65 225401
Core & Main
$382.44
Myron L - 5125TD 512T5D DS Conductivity Pool Meter, 0-5000 Ppm/442, 0-5000 Ppm/Nacl
Amazon.com
34
Free shipping
$382.44
Myron L - 5125TD 512T5D DS Conductivity Pool Meter, 0-5000 Ppm/442, 0-5000 Ppm/Nacl
Amazon.com
34
$94.87
$218.15
Sper Scientific Portable Digital Chlorine Meter 860043 W/Large LCD Display For Swimming Pools Spas, Measure Free Total Chlorine, Accurate Handheld Water Chemical Testing Kit - 4 Pc
leatherxkits
56% off
$94.87
$218.15
Sper Scientific Portable Digital Chlorine Meter 860043 W/Large LCD Display For Swimming Pools Spas, Measure Free Total Chlorine, Accurate Handheld Water Chemical Testing Kit - 4 Pc
leatherxkits
$1,191.10
Myron L 6PIIFCE, Ultrameter II Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Me
Selectum
37
$1,191.10
Myron L 6PIIFCE, Ultrameter II Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Me
Selectum
37
$1,202.50
GF Piping Systems 3-9950-6, Chlorine Monitor 2CH AC (NO Modules) 4 To 20 Ma Output 12/24 VDC Or 100
Selectum
$1,202.50
GF Piping Systems 3-9950-6, Chlorine Monitor 2CH AC (NO Modules) 4 To 20 Ma Output 12/24 VDC Or 100
Selectum
$869.00
Environmental Express Model 200 Chlorine Colorimeter | Cole-Parmer
Cole-Parmer
$869.00
Environmental Express Model 200 Chlorine Colorimeter | Cole-Parmer
Cole-Parmer
$383.54
Extech Chlorine Meter Cl200 - 09266909
Penn Tool Co
$383.54
Extech Chlorine Meter Cl200 - 09266909
Penn Tool Co
$100.00
3/4 Inch Water Meter - Stainless Steel, Pulse Output
EKM Metering
$100.00
3/4 Inch Water Meter - Stainless Steel, Pulse Output
EKM Metering
$42.99
Aquacheck Pro 2 in 1 Digital PH And Chlorine Meter Professional Water Quality Tester For Pools, Spas & Aquariums Square
Inspire Uplift
$42.99
Aquacheck Pro 2 in 1 Digital PH And Chlorine Meter Professional Water Quality Tester For Pools, Spas & Aquariums Square
Inspire Uplift
$148.00
Hach Chlorine (Free & Total) Test Kit Model CN-70 1454200
Core & Main
45
$148.00
Hach Chlorine (Free & Total) Test Kit Model CN-70 1454200
Core & Main
45
$162.04
$172.38
7In1 Swimming Pool Chlorine Ph Meter Professional Tester Water Quality
eBay
$162.04
$172.38
7In1 Swimming Pool Chlorine Ph Meter Professional Tester Water Quality
eBay
$7,458.00
HF Scientific Online Chlorine Monitor, 100 To 240 VAC, 47 To 63 Hz, 13.125" X 5.0625" | Cole-Parmer
Cole-Parmer
$7,458.00
HF Scientific Online Chlorine Monitor, 100 To 240 VAC, 47 To 63 Hz, 13.125" X 5.0625" | Cole-Parmer
Cole-Parmer
$68.99
5 in 1 Digital Chlorine Meter Pen Multi Function PH, ORP, CL2, H2 & Temperature Water Quality Tester For Pools & Spas 4 in 1
Inspire Uplift
$68.99
5 in 1 Digital Chlorine Meter Pen Multi Function PH, ORP, CL2, H2 & Temperature Water Quality Tester For Pools & Spas 4 in 1
Inspire Uplift
$414.99
Hanna HI97734 High Range Free & Total Chlorine Portable Photometer, Meter Only
Blue Tiger Scientific
14-day returns (most items)
$414.99
Hanna HI97734 High Range Free & Total Chlorine Portable Photometer, Meter Only
Blue Tiger Scientific
14-day returns
$107.99
7 in 1 Digital Chlorine & PH Meter Water Quality Tester For Swimming Pools, Hot Springs & Spas 2
Inspire Uplift
$107.99
7 in 1 Digital Chlorine & PH Meter Water Quality Tester For Swimming Pools, Hot Springs & Spas 2
Inspire Uplift
$634.99
Hanna HI971044 Pool & Spa Water Quality Photometer | Free & Total Chlorine, Ph, CYA Meter With CAL Check, Kit With CAL Check Standards
Blue Tiger Scientific
14-day returns (most items)
$634.99
Hanna HI971044 Pool & Spa Water Quality Photometer | Free & Total Chlorine, Ph, CYA Meter With CAL Check, Kit With CAL Check Standards
Blue Tiger Scientific
14-day returns
$488.80
RKI CL2 Chlorine Personal Single Gas Detector, 0-20.00 Ppm Range, SC-04 Series, Mfg 73-0075 Neutral OSFA
Durawear.com
Free shipping
$488.80
RKI CL2 Chlorine Personal Single Gas Detector, 0-20.00 Ppm Range, SC-04 Series, Mfg 73-0075 Neutral OSFA
Durawear.com
Free shipping
$114.00
Hach Chlorine (Total) Test Kit Model CN-21P 2444400
Core & Main
6
$114.00
Hach Chlorine (Total) Test Kit Model CN-21P 2444400
Core & Main
6
$221.99
Extech CL200 Exstik Chlorine Meter
Southern Electronics
$221.99
Extech CL200 Exstik Chlorine Meter
Southern Electronics
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    Shop chlorine meter

    Sponsored
    About our ads
    $307.41
    Extech CL200 Exstik Waterproof Chlorine Meter
    Amazon.com
    40
    Free shipping
    $307.41
    Extech CL200 Exstik Waterproof Chlorine Meter
    Amazon.com
    40
    $711.00
    Hach DR300 Pocket Colorimeter, Chlorine, Free + Total, LR/HR, Waterproof, Portable, For Reliable Water Quality Testing, Easy-To-Use Interface, Large
    Amazon.com
    30
    Free shipping
    $711.00
    Hach DR300 Pocket Colorimeter, Chlorine, Free + Total, LR/HR, Waterproof, Portable, For Reliable Water Quality Testing, Easy-To-Use Interface, Large
    Amazon.com
    30
    $1,118.70
    Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
    Amazon.com
    37
    Free shipping
    25% off
    $1,118.70
    Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
    Amazon.com
    37
    $468.00
    RKI 04 Series Single Gas Toxic Monitor, Chlorine (Cl2) 0 - 20.00 Ppm
    Activated Carbon Depot
    $468.00
    RKI 04 Series Single Gas Toxic Monitor, Chlorine (Cl2) 0 - 20.00 Ppm
    Activated Carbon Depot
    $39.99
    $45.99
    Tilswall Swimming Pool Tester, 2-In-1 Chlorine & PH Meter
    Tilswall US
    13% off
    $39.99
    $45.99
    Tilswall Swimming Pool Tester, 2-In-1 Chlorine & PH Meter
    Tilswall US
    $3,791.00
    Hach Cl17sc Colorimetric Chlorine Analyzer With Standpipe Install Kit For Free Chlorine 8572700
    Core & Main
    $3,791.00
    Hach Cl17sc Colorimetric Chlorine Analyzer With Standpipe Install Kit For Free Chlorine 8572700
    Core & Main
    $711.00
    Hach DR300 Pocket Colorimeter Chlorine Dioxide With Box LPV445.97.51110
    Core & Main
    $711.00
    Hach DR300 Pocket Colorimeter Chlorine Dioxide With Box LPV445.97.51110
    Core & Main
    $5,466.00
    Hach Ultra Low Range (ULR) Cl17sc Chlorine Analyzer With Standpipe Kit 9790200
    Core & Main
    $5,466.00
    Hach Ultra Low Range (ULR) Cl17sc Chlorine Analyzer With Standpipe Kit 9790200
    Core & Main
    $433.52
    PCE Instruments PCE-CHT 10, Water Analysis Meter Chlorine Tester
    Selectum
    $433.52
    PCE Instruments PCE-CHT 10, Water Analysis Meter Chlorine Tester
    Selectum
    $711.00
    Hach DR300 Chlorine (Free And Total) Pocket Colorimeter LPV445.97.00110
    Core & Main
    30
    $711.00
    Hach DR300 Chlorine (Free And Total) Pocket Colorimeter LPV445.97.00110
    Core & Main
    30
    $8,868.00
    Hach Single Parameter Monitoring Panel For Chlorine With SC4500 And Cl17sc SPMP-CL
    Core & Main
    $8,868.00
    Hach Single Parameter Monitoring Panel For Chlorine With SC4500 And Cl17sc SPMP-CL
    Core & Main
    $334.11
    ITS 486201-KM Pool Exact EZ Photometer Master Pool Test Kit | 10 Parameters - F/C/T Chlorine, Ph, Alkalinity, Calcium, Cyanuric, Copper, Salt, &
    Amazon.com
    24
    Free shipping
    $334.11
    ITS 486201-KM Pool Exact EZ Photometer Master Pool Test Kit | 10 Parameters - F/C/T Chlorine, Ph, Alkalinity, Calcium, Cyanuric, Copper, Salt, &
    Amazon.com
    24
    $8,612.00
    Hach Clt10sc Analyzer With 2-Input SC4500 Controller No Ph Probe Total Chlorine LXV525.97KTO029
    Core & Main
    $8,612.00
    Hach Clt10sc Analyzer With 2-Input SC4500 Controller No Ph Probe Total Chlorine LXV525.97KTO029
    Core & Main
    $437.90
    PCE Instruments PCE-CHT 10, Water Analysis Meter Chlorine Tester
    PrimeLabMed
    $437.90
    PCE Instruments PCE-CHT 10, Water Analysis Meter Chlorine Tester
    PrimeLabMed
    $75.99
    $183.99
    Easy Pool Water Tester PH And Chlorine Level Meter
    luxicro
    14-day returns (most items)
    58% off
    $75.99
    $183.99
    Easy Pool Water Tester PH And Chlorine Level Meter
    luxicro
    14-day returns
    $6,281.00
    GF Piping Systems 3-4630-23, 4630 Free Chlorine Analyzer System 0.05 To 5 Ppm
    Selectum
    $6,281.00
    GF Piping Systems 3-4630-23, 4630 Free Chlorine Analyzer System 0.05 To 5 Ppm
    Selectum
    $6,473.00
    GF Piping Systems 3-4630-14, Type 4630 Free Chlorine Analyzer System, 0.02-2 Ppm, 100 - 240 VAC
    Selectum
    $6,473.00
    GF Piping Systems 3-4630-14, Type 4630 Free Chlorine Analyzer System, 0.02-2 Ppm, 100 - 240 VAC
    Selectum
    $157.00
    Hach Chlorine (Total) Test Kit Model CN-65 225401
    Core & Main
    $157.00
    Hach Chlorine (Total) Test Kit Model CN-65 225401
    Core & Main