HighGravity is a distrubutor for ADEX. ADEX does not sell retail. For questions about a valve please call ADEX. For orders or questions about your order, please email highgravity. To order an ADEX DUMP VALVE, please fill in the information below. We will take your information, calculate shipping and send your EMAIL ADDRESS an approx. date of delivery with a total price . There is a back order on some of the ADEX models due to increased sales. Regular Duty Valves can usually be shipped with in one or two business days after payment clears depending on stock. All orders are shipped directly from California and shipping rates are calculated from there.. Once the payment is cleared, your ADEX Products will be shipped.