CHEMSOLUTE Universal pH-indicator paper, pH 1-14, 5m x 7mm, Refill pack with 3 rolls Back Catalog number: 2814-3ROLL Availability: In the manufacturer's stock Price on request - + Recommended HI1131P pH elektroda s jednoduchým rozhraním, BNC+pin Price on request MA812/2 Conductivity/TDS probe with 2meter cable(MC 310). Price on request MA841 Spare membrane for MW600 (5 pcs). Price on request