Online ordering is available 24-7. Customer Service is available Monday-Friday, 8:00 a.m.-4:00 p.m. Arizona Time. Note: We fill all our online orders Monday-Friday 8:00 a.m.-2:00 p.m. If you order is placed after 1:00 p.m. Monday-Thursday your order will be filled the following business day. Orders placed after 1:00 p.m. on Friday, and through the weekend will be filled the following Monday. Product Availability & Backorders Most Sper Scientific items are in stock and ship within 1-2 business days. Other items may be shipped to you directly from the manufacturer, and we will notify you of expected lead times when we confirm your order. Types of Payment We accept VISA, MasterCard, American Express and Discover. You may also pay by check, money order, PayPal, COD or Telex Transfer ($25). If paying by money order/check, your order will ship once your payment clears the bank. Send payment and a copy of your order invoice to: Sper Scientific Accounts Receivable 8281 E. Evans Rd., Suite #103 Scottsdale, AZ 85260 Delivery & Shipping We ship most orders via UPS and USPS. For orders shipped via UPS and other carriers, we will send you automated tracking information. Sper Scientific has no control over in-transit carrier delays, however, if an unusual delay occurs, contact us at 480.948.4448 or email support@sperdirect.com and we will work with the carrier to ensure proper delivery.

To return or exchange an item, please contact our Customer Support at 480.948.4448 or email support@sperdirect.com to be issued an RGA# (Return Goods Authorization). Items returned without an RGA# will not be processed and will be returned to the originating address. Claims for items that were received damaged or defective must be made within 14 days of the invoice date. If you are not satisfied with a product you may return it within 30 days of the invoice date for replacement or a refund, minus the cost of Shipping and Certification (if applicable). To avoid a restocking fee, returned items must be in new condition and include the original packaging, instructions, and accessories. When we replace an item, we also cover the cost of shipping the replacement to you. Please see your warranty for problems that occur after 30 days. The warranty period of each product is stated on the product page of the site.