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 MA916B/3 Combined glass pH electrode, refill, BNC, 3m Price on request HI54710 Sada pufrů pH 4,01; pH 7,01; pH 10,01 Price on request MA814DB/1 EC/TDS/Temp probe for Mi170 Price on request