HI-97734-11 Cal Check Standards for Free and Total Chlorine High Range, HI-977 Photometer series £264.00 (exc. VAT) View Product
HI-38020 Chlorine - Range (0.00-0.70 mg/L)(0.0-3.5 mg/L)(0.0-10.0 mg/L) £169.00 (exc. VAT) View Product
HI-97752 Calcium and magnesium photometer: Range: Ca: 0 to 400 mg/L, Mg: 0 to 150 mg/L £507.50 (exc. VAT) View Product