Check the listing for details. Oakton WD-35630-51 Combination pH/CON/ATC Probe for the PC 450 Meter. Condition: New. Listed at 384.75 USD. Subscribe to Our NewsletterOakton WD-35630-51 Combination pH/CON/ATC Probe for the PC 450 Meter Brand:OaktonModel No:WD-35630-51Ref No:3563051Our Model No:WD3563051 Terms & ConditionsPlease note estimated delivery time above. Contact us for details or if you have a delivery requirement. We ask for your patience while striving to ensure your shipment arrives quickly and accurately.Domestic ShippingFREE Standard Shipping on items OVER $75 and less than 30lbs to continental U.S. Add $36 for AK, HI, or PR. Please contact us for shipping rates to any overseas US territories including: Northern Mariana Islands, Guam, Puerto Rico, U.S. Virgin Islands and American Samoa.PO Boxes/APOs require USPS shipping and may therefore experience longer lead times6.25% Sales Tax for shipping to MAInternational ShippingDue to international voltage requirements, please ask us prior to purchasing to confirm your product will operate correctly in your country.Please contact us for shipping rates to any overseas U.S. territories.International customers are responsible for all shipping charges, including any duties or taxes.