Pinit WARNING:About product imagesMettler-Toledo® 21917 | DG111-SC General Combined Glass pH Electrode With a Ceramic Frit For Aqueous MediaItem Number:MET-21917 Manufacturer Part No:89596Manufacturer:Mettler-ToledoUnits:Sold individually To request the lead time of this item please click here This item is discontinued.For assistance finding an alternative item:Call:512.836.1667e-mail:customersvc@capitolscientific.com Order & Product PoliciesDetailsSold individuallyDocuments & Videos