Sale offers only valid while supplies last. 20% off offer is valid on qualifying products with no minimum. Valid only on orders within the U.S. and only to the contiguous 48 states (Excluding HI & AK) on supplies orders. Select items may be excluded such as current promotions, sale items, kits, packages, equipment (including electric and stationary tables) or where restricted by manufacturer policy. Member discounts such as AMTA cannot be combined with other offers. Offer may not be applied to previous orders or used in conjunction with any other offer. Valid on supply orders only when source code 216789 is used. Offer ends 9/13/23 at 11:59pm CST.