Your coupon doesn't make a lot of sense to me. I have a coupon for $1.00 off any Woolite product and the coding is 5 62338 13076 7
Our coupons should have the same manufacturer's code, but clearly 11120 is not the same as 62338.
They should also both have *similar* product codes, but yours is 431 and mine is 130. At a minimum, both coupon should have the same first digit in this code.
Sorry I can't be of more help. All I can really tell you about your coupon is that the 5 at the beginning means it will double and the 87 means it's for $3.00. The 431 indicates that it's for a fairly specific product (most likely not the entire product line).
The second barcode on your coupon is inactive right now. All coupons will change to this new coding system beginning in 2010. It will make manual decoding almost impossible.
11120 is for Bissell Homecare, Inc. Did you get the coupon when you bought a vacum cleaner? It might be 3.00 woolite when you buy Bissell Homecare, Inc. item. It will not work on the woolite by tself