This Digital Upper Arm Blood Pressure Monitor, originally $27.99, drops to $19.59 when you click the 7% off coupon on the product page and also enter our code REXSIXDR during checkout at XREXS via Amazon. Shipping is free when you use a Prime account or free Prime trial. Shipping is also free when you spend $25 or more. Otherwise, it adds $5.67. We couldn't find this deal anywhere else but similar ones are going for $25. This monitor is FDA-approved and fits most arms between 9"-13". Sales tax is charged in most states.