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 MA991B/1 Combined glass pH electrode MA991B/1 Price on request MA915B/2 pH glass electrode for with 2meter cable. Price on request 18901206 146.6μS/cm 250mL Conductivity Solution, one bottle 19,90 €