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          • Chloride Testing
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          • Phosphates & Phosphorus Chemistries
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          • Filters
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          • Benchtop Instrumentation
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          • Portable Instrumentation
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        • Ultrasonic Level, Transmitters
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      • Locate & Leak Detection
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          • Liquid Tracing Dye
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      • McElroy Fusion Equipment
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        • McElroy Fusion Machines
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          • Curb & Valve Box Key Kits
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          • Telescoping Curb Box Wrenches
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        • Drilling/Tapping Tools & Accessories
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          • Drilling Tools
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          • Tapping Tools
        • Flex Sewer Couplings & Saddles
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          • Mechanical Joint (MJ) Accessory Kits
          • Mechanical Joint Restraints, DI
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          • Mechanical Joint Restraints, Kit, PVC
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        • Pipe Adaptors & Couplings
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          • Couplings
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          • Restrained Pipe Couplings
        • Pipe Cutting & Accessories
        • Pipe Fittings & Accessories
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          • Brass Pipe Fittings
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        • Pipe Pullers & Accessories
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          • Descaler
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        • Pipe/Tubing Cutting & Finishing
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          • Copper Tube Rerounders
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          • Plastic Pipe Saws
          • Reamers
          • Replacement Blades
          • Replacement Wheels
          • Rerounder
          • Service Line Shears
          • Shears
          • Tubing C Cutters
          • Tubing Cutters
        • Pipe/Tubing Shut Off
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          • Rotary Cutter Wheel
        • Service Saddles
        • T Bolts & Nuts
        • Valve Operators
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        • Blocking Plugs
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        • Deflection Testing
        • Line Stringing
        • Line Testing Accessories
        • Low Pressure Air Testing
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        • Mechanical Plugs
      • Process Analyzers
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        • Chlorine Analyzers & Accessories
        • Conductivity/Salinity/TDS Analyzers & Accessories
        • Controllers & Transmitters
        • Dissolved Oxygen Analyzers & Accessories
        • Fluoride Analyzers & Accessories
        • Hardness Analyzers & Accessories
        • Suspended Solids & Sludge Blanket Detectors
        • Turbidity Anaylzers & Accessories
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      • Pumps
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        • Centrifugal Pumps
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          • Diaphragm Pumps, Electric
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          • Drum Pump Accessories
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          • Pump Control Panels, Accessories
          • Pump Control Panels, Duplex
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        • Sewage Pumps
        • Submersible Pumps - Dewatering / Utility
        • Submersible Sump Pumps
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          • Semi-Trash Pumps, Engine Driven
          • Trash Pump Accessories
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        • Utility Hand Pumps
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        • Blowers & Ventilation
        • Confined Spaces & Fall Protection
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          • Harnesses and Lanyards
          • Tripods, Hoists and Winches
        • Coolers
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          • Knee Pad
        • Eye Protection
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          • Face Shields
          • Safety Eyewear
          • Safety Goggles
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          • First Aid Cabinets
          • First Aid Kits
          • Specialized First Aid Kits
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          • Calibration Gas
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          • Gas Docking Stations & Test Systems
        • Hand Protection
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          • Chemical Resistant Gloves
          • Coated Gloves
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          • Disposable Gloves
          • Electrical, Arc Flash & Welding Gloves
          • Leather & Cotton Gloves
          • Waterproof Cold Weather Gloves
        • Head Protection
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          • Hard Hats and Safety Helmets
          • Head and Neck cooling/warmers
        • Hearing Protection
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          • Earmuffs
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        • Hydration
        • Respiratory Protection
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          • Bitter and Sweet Fit Test Kits
          • Disposable Respirators
          • Half and Full Face Respirators
          • Respirator Cartridges & Accessories
          • Respiratory Storage
          • SCBA and Escape Respirators
        • Safety Apparel
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          • Belts & Suspenders
          • Chemical Resistant Apparel
          • General Winter Apparel
          • Hi-Vis Apparel
          • Raingear
          • Safety Aprons
          • Waders
          • Work Boots
        • Signs, Tags & Labels
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          • Box of Tags
          • Cross Barrier, Man-Way
          • Decals, Hard Hat
          • Dispensers, Acrylic
          • Floor Marking Strips, Heavy Duty
          • Labels, Arc Flash
          • Labels, Safety
          • Labels, Voltage Markers
          • Pipe Markers, Self Stick
          • Pipe Markers, Snap Tite
          • Right to Know/SDS
          • Sign Posts & Hardware
          • Signs, Braille
          • Signs, California Title 24
          • Signs, Evacuation Map Holders
          • Signs, Floor
          • Signs, Parking
          • Signs, Projection
          • Signs, Safety
          • Signs, Traffic
          • Stencil
          • Tags By-The-Roll
          • Tags, Cylinder
          • Tags, Danger
          • Tags, Fire Extinguisher
          • Tags, Inspection
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          • Tags, Loop 'N Strap
          • Tags, Safety
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          • Tape, Floor
          • Tape, Hazard
          • Tape, Pipe Directional Flow Arrow
          • Tape, Reflective
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          • Barricade Lights
          • Channelization Devices
          • Cone Bars
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  • Lab Testing
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Hardness Testing

  • Hardness Test Kits & Test Strips

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98 Products

Hardness Chemistries

98 Products

Core & Main Hardness Standard as CaCO3, 1000 ppm, 1 L
$55.35

Mfr. Part # HA7670-Q

Product # 707040

Core & Main Hardness Standard as CaCO3, 1000 ppm, 500 mL
$37.65

Mfr. Part # HA7670-P

Product # 707039

Core & Main Hardness Standard as CaCO₃, 100 ppm, 1 L
$48.25

Mfr. Part # HA7630-Q

Product # 707038

Core & Main Hardness Standard as CaCO3, 100 ppm, 500 mL
$29.55

Mfr. Part # HA7630-P

Product # 707037

Hach EDTA, Disodum Salt, TitraVer® Hardness Reagent, ACS Grade, 500 g, 20434
$132.00

Mfr. Part # 20434

Product # 700586

Hach EDTA, Disodum Salt, TitraVer® Hardness Reagent, ACS Grade, 100 g, 20426
$56.79

Mfr. Part # 20426

Product # 700585

Hach Rochelle Salt Solution, 500 mL, 172549
$112.00

Mfr. Part # 172549

Product # 700772

Hach EDTA Digital Titrator Cartridge, 0.1428 M, 1496001
$33.19

Mfr. Part # 1496001

Product # 701070

Hach EDTA Digital Titrator Cartridge, 0.714 M, 1495901
$33.19

Mfr. Part # 1495901

Product # 701069

Hach CDTA Digital Titrator Cartridge, 0.800 M, 1440301
$29.75

Mfr. Part # 1440301

Product # 701024

Hach CDTA Digital Titrator Cartridge, 0.0800 M, 1440201
$32.99

Mfr. Part # 1440201

Product # 701023

Hach CDTA Disodium Magnesium Salt, 100 g, 1408026
$281.00

Mfr. Part # 1408026

Product # 700949

Hach CDTA Disodium Magnesium Salt Powder Pillows, pk/100, 1408099
$64.19

Mfr. Part # 1408099

Product # 700950

Hach Eriochrome Black T, Practical Grade, 25 g, 13224
$56.09

Mfr. Part # 13224

Product # 700561

Hach Hardness Reagent Set, Calmagite Colorimetric, 2319900
$122.00

Mfr. Part # 2319900

Product # 701432

Hach Hardness Buffer Solution, Aminoethanol, 500 mL, 2311149
$40.35

Mfr. Part # 2311149

Product # 701416

Hach Alkali Buffer, 3.0 N, 100 mL, 2307242
$28.09

Mfr. Part # 2307242

Product # 701406

Hach HNB Lab Reagent Package, 2307300
$59.19

Mfr. Part # 2307300

Product # 701407

Hach HNB Dilution Solvent, 100 mL, 2305042
$18.25

Mfr. Part # 2305042

Product # 701402

Hach Hardness (Total) Reagent Set, Digital Titrator, Full Range, 2272000
$103.00

Mfr. Part # 2272000

Product # 701371

Hach Hardness (Calcium and Total) Reagent Set, Digital Titrator, 2272100
$178.00

Mfr. Part # 2272100

Product # 701372

Hach Alkali Solution, 500 mL, 2241749
$80.29

Mfr. Part # 2241749

Product # 701317

Hach Calcium/Magnesium Indicator Solution, 500 mL, 2241849
$88.75

Mfr. Part # 2241849

Product # 701319

Hach EGTA Solution, 50 mL SCDB, 2229726
$35.65

Mfr. Part # 2229726

Product # 701308

Hach Calmagite Solution, 0.003%, 4 L, 2230356
$119.00

Mfr. Part # 2230356

Product # 701309

Hach UniVer® 3 Hardness Reagent, 28 g, 21320H
$20.99

Mfr. Part # 21320H

Product # 702691

Hach Magnesium TNTplus Vial Test, 0.5 - 50 mg/L Mg, 25 Tests, TNT849
$116.00

Mfr. Part # TNT849

Product # 700168

Hach CDTA Solution, 0.4M, 15 mL SCDB, 2615436
$22.75

Mfr. Part # 2615436

Product # 701758

Hach Hardness (ULR) Reagent Set, Bulk Solution, 2603101
$1,243.00

Mfr. Part # 2603101

Product # 701728

Hach Hardness (ULR) Reagent Set, Solution Pillows, 2603100
$421.00

Mfr. Part # 2603100

Product # 701727

Hach Chlorophosphonazo Indicator Solution Pillows for ULR Hardness, pk/100, 2589599
$390.00

Mfr. Part # 2589599

Product # 701717

Hach EDTA Sandard Solution, 0.0075N, 100 mL MDB, 2498132
$29.75

Mfr. Part # 2498132

Product # 701647

Hach CDTA Titrant (HexaVer™), 0.02 N, 1 L, 74053
$51.15

Mfr. Part # 74053

Product # 700672

Hach CDTA Titrant (HexaVer™), 0.02 N, 4 L, 74056
$97.99

Mfr. Part # 74056

Product # 700673

Hach Hardness (Calcium & Total Sequential) LR Reagent Set, Digital Titrator, 2448600
$159.00

Mfr. Part # 2448600

Product # 701606

Hach Hardness (Calcium & Total Sequential) HR Reagent Set, Digital Titrator, 2448700
$141.00

Mfr. Part # 2448700

Product # 701607

Hach Hardness Reagent Set (Calcium & Total), Buret, 0-2500 mg/L CaCO₃, 2448200
$160.00

Mfr. Part # 2448200

Product # 701605

Hach Hardness (Total) Reagent Set, HR, Digital Titrator, 2448100
$77.05

Mfr. Part # 2448100

Product # 701604

Hach Hardness (Total) Reagent Set, LR, Digital Titrator, 2448000
$77.05

Mfr. Part # 2448000

Product # 701603

Hach Hardness (Total) Reagent Set, Buret, LR, 2447600
$76.15

Mfr. Part # 2447600

Product # 701601

Hach Hardness (Calcium) Reagent Set, HR, Digital Titrator, 2447500
$81.45

Mfr. Part # 2447500

Product # 701600

Hach Hardness (Calcium) Reagent Set, LR, Digital Titrator, 2447200
$81.45

Mfr. Part # 2447200

Product # 701599

Hach Hardness (Calcium) Reagent Set, Buret, 2447000
$80.75

Mfr. Part # 2447000

Product # 701598

Hach Hardness 1 Buffer Solution, 50mL SCDB, 42426
$17.35

Mfr. Part # 42426

Product # 700638

Hach Hardness (Total) Reagent Set for 5-EP Test Kit, 2437900
$42.55

Mfr. Part # 2437900

Product # 701580

Hach Hardness (Total) Reagent Set for HA-71A Test Kit, 2437800
$64.15

Mfr. Part # 2437800

Product # 701579

Hach UniVer3 Hardness Reagent, 454 g w/ Scoop, 2883702
$90.55

Mfr. Part # 2883702

Product # 701977

Hach CalVer® 2 Calcium Indicator, 454 g, 28101H
$77.25

Mfr. Part # 28101H

Product # 702745

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