HACH PD1P1 brand new PH Electrode brand newHACH PD1P1 brand new PH Electrode brand newPD1P1HACH PD1P1 brand new PH Electrode brand new Payment is made within 4 days after the order is placed, and orders that have not been paid within 4 days will be automatically cancelled. If you require a larger quantity for this item, you can contact me via eBay For special situations, you can tell us via eBay. thank you for understanding. Thank you again.BrandHACHMPNDoes Not ApplyTypePH ElectrodeCountry/Region of ManufactureUnknownModelPD1P1