A wide range of test discs containing a series of graded glass filters, which have been pre-calibrated to give direct test readings. The unique feature of Lovibond® test discs is that they incorporate coloured glass filters which are colour stable and not affected by UV light or extreme environmental conditions.

• Disc codes starting with 'N' are for use with the Nessleriser 2150
• Disc codes starting with 'C' are for use with the Nessleriser 2250
• All other discs are for use with the Comparator 2000+