$5.00 on any One KY Duration 36ct or 100ct Spray Posted by Harbor Master on 16 November 2017, 9:19 am Tweet Expired The Coupon expires 01/31/18 (Note the longer Ex. date) The print limit is two. The coupon states limit of two like coupons in the same shopping trip. Click here to print a coupon for $5.00 on any One KY Duration 36ct or 100ct Spray Walmart sells the 36 Count spray for $.19.91. $14.97 after the $5 off coupon above.