Sponsored Ad - Hach DR900 Multiparameter Handheld Colorimeter, Portable Water Testing, Over 90 Colorimetric Parameters, Waterproof, Dustproof, Shock-Resistant, USB Data Transfer, 9385100

Hach DR 900 Multiparameter Handheld Colorimeter, Portable Water Testing, Over 90 Colorimetric Parameters, Waterproof, Dustproof, Shock-Resistant, USB Data Transfer, 9385100

Hach DR300 Pocket Colorimeter, Chlorine, Free + Total, LR/HR, Waterproof, Portable, for Reliable Water Quality Testing, Easy-to-Use Interface, Large Backlit Display, with Carry Case, LPV445.97.00110

Hach DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 100, USEPA Accepted, Drinking Water and Wastewater Analysis, Boric Acid Free, 0.02-2.00 mg/L Cl₂, 2105569