Brita coupons

Here’s a coupon for 5$ off a Brita pitcher – it’s good til end of year.http://www.filterforgood.ca/code/navigate.php?Id=144
A good coupon since these are often cleared out depending on seasons, but i find it a bit weird it says not all stores will accept home printed coupons. Might make it harder to use at a few stores. I haven’t had any problems with printed coupons so far (fingers crossed) – if anyone sees these on sale post it up.