1/4" ID Peristaltic Pump Santoprene Tubing (TPE55S Back Catalog number: PC-5000-1177 Availability: In the manufacturer's stock Price on request - + Recommended MA915B/2 pH glass electrode for with 2meter cable. Price on request MA923B/3 Redox Epoxy electrode MA923B/3 Price on request MA814DB/1 EC/TDS/Temp probe for Mi170 Price on request