One thing to note - the 5 gallon ziploc bags that I got from them have the ziploc on one end, and the opening that you have to iron shut on the opposite end. This isn't ideal for bucket use, as you would like to zip seal and then iron the same end. I did a bunch of buckets with these bags, and the zippers are now at the bottom of the buckets.
I guess when it comes time to use them, I will have to flip the bags, and cut open the zipper end so it is resealable.
They are the best site I have found for bags and O2 absorbers.