HARDNESS TEST KIT 5 – 600 PPM

Mini Hardness Test Kit
“Disposable Carboard Box, 50 mL tube, TH4 (30 mL), TH5 (30 mL), CH1 (50/pk), TH2 (30 mL), CH2 (30 mL) & 10 mL syringe. Include instruction card.”