| Hach | Buffer Solution, pH 4.01, 50 mL (color coded red) NIST | C |
| Hach | Buffer Solution, pH 4.01, 500 mL (color coded red) (NIST) | 2283449 |
| Hach | Buffer Solution, pH 4.01, 500 mL (no color code) (NIST) | 1222349 |
| Hach | Buffer Solution, pH 7.00, 20 L (color coded yellow) (NIST) | 2283561 |
| Hach | Buffer Solution, pH 7.00, 4 L (color coded yellow) (NIST) | 2283556 |
| Hach | Buffer Solution, pH 7.00, 4 L (no color code) (NIST) | 1222256 |
| Hach | Buffer Solution, pH 7.00, 50 mL (color coded yellow) NIST | 2283526 |
| Hach | Buffer Solution, pH 7.00, 500 mL (color coded yellow) (NIST) | 2283549 |
| Hach | Buffer Solution, pH 7.00, 500 mL (no color code) (NIST) | 1222249 |
| Hach | Buffer Solution, Sulfate Type 500 mL | 45249 |
| Hach | Buffer Solution, Ultra-Low Range Chlorine, pk/20 1.5 mL Ampules | 2493120 |
| Hach | Buffer, for Amperometric Chlorine, 1 L (phosphate type, pH 7, APHA) | 2155353 |
| Hach | Buffer, for Amperometric Chlorine, 100 mL MDB (phosphate type, pH 7, APHA) | 2155332 |
| Hach | Buffer, pH 10.00, pk/15 Powder Pillows (color coded blue) (NIST) | 2227195 |
| Hach | Buffer, pH 10.00, pk/250 Powder Pillows (color coded blue) (NIST) | 2227164 |
| Hach | Buffer, pH 10.00, pk/50 Powder Pillows (color coded blue) (NIST) | 2227166 |
| Hach | Buffer, pH 4.01 & pH 7.00, 10 Powder Pillows of each (color coded red and yellow) (NIST) | 2299264 |
| Hach | Buffer, pH 4.01, pk/250 Powder Pillows (color coded red) (NIST) | 2226964 |
| Hach | Buffer, pH 4.01, pk/50 Powder Pillows (color coded red) (NIST) | 2226966 |
| Hach | Buffer, pH 7.00, pk/15 Powder Pillows, (color coded yellow) (NIST) | 2227095 |
| Hach | Buffer, pH 7.00, pk/250 Powder Pillows (color coded yellow) (NIST) | 2227064 |
| Hach | Buffer, pH 7.00, pk/50 Powder Pillows (color coded yellow) (NIST) | 2227066 |
| Hach | Buffer, pH 8.00, pk/15 Powder Pillows | 1407995 |
| Hach | BUFFER, PH4.01 PWD PLWS R PK/15 | 2226995 |
| Hach | CA610 Fluoride Analyzer | 5740001 |
| Hach | Cadmium Reagent Set, 100 tests | 2242201 |
| Hach | Cadmium Reagent Set, 100 tests (No Air Shipments) | 2242200 |
| Hach | Cadmium Standard Solutions as Cd (NIST), 100 mg/L, Bottle/100 mL | 1402442 |
| Hach | Cadmium TNTplus (0.02-0.30 mg/L), 25 tests | TNT852 |
| Hach | Calcium Indicator, CalVer® 2, 50 mL sample, pk/100 Powder Pillows | 85299 |
| Hach | Calcium Indicator, CalVer® 2, pk/100 Powder Pillows | 94799 |
| Hach | Calcium Separation Set (for TNT852), 25 tests | TNT892 |
| Hach | Calcium Standard Solutions as Ca, 10.0 mg/L, Bottle/100 mL (NIST) | 2305442 |
| Hach | Calcium Standard Solutions as Ca, 100 mg/L, Bottle/500 mL (NIST) | 4457649 |
| Hach | Calcium Standard Solutions as Ca, 1000 mg/L, Bottle/500 mL (NIST) | 2240349 |
| Hach | Calcium Standard Solutions as CaCO3 (CaCl2) 1 mg/L, 946 mL (NIST) | 232516 |
| Hach | Calcium Standard Solutions as CaCO3 (CaCl2) 5 mg/L, 946 mL (NIST) | 235616 |
| Hach | Calcium Standard Solutions as CaCO3 (CaCl2) 50 mg/L, 946 mL (NIST) | 2127716 |
| Hach | Calcium Standard Solutions as CaCO3 (CaCl2), 1000 mg/L, Bottle/1 L (NIST) | 12153 |
| Hach | CALCIUM SULFATE POWDER, 50 TESTS | 1232120 |
| Hach | Calcium/Magnesium Indicator Solution 100 mL MDB | 2241832 |
| Hach | Calcuim/Hardness Standard Solutions as CaCO3, 10,000 mg/L, pk/16 (NIST) Ampules | 218710 |
| Hach | CalVer® 2 Calcium Indicator 113 g | 28114H |
| Hach | CAP, ALKALINITY REAGENT | 5143000 |
| Hach | Caps, flip-spout, 2/pkg | 2581802 |