Para Red, certified, 0.1g Back Catalog number: C15875000 Availability: In the manufacturer's stock Price on request - + Recommended MI511-100 Reagent kit for 100 tests (pH and free & total chlorine) Contains: 1 x 20 mL DPD1, 1 x 20 mL DPD2, 1 x 20mL DPD3, 1 x 20mL pH3 Price on request NG-S31-1G Sodium laurate, 1g Price on request 52340 Ammonium dihydrogen phosphate Modifier Price on request