Promotional or other applicable discounts will NOT be shown at checkout. Discounts will be applied and confirmed on detailed order invoice that will be mailed to you. Additional charges will be added to your total for shipping, handling and taxes. For orders shipped from Polysciences, Inc., in the United States, a special handling fee of $20.00 may be added to your order for special hazardous material packaging, dry ice and/or cold pack requirements of specific products. Please visit the Ordering Info page for details.