WSB,

I don't know for sure, but it think under that red dust cover, there are spigots to adapt your filter to the bottle?
I've dealt with Campmor for 30 years now. They have a money back policy. I'd call them, ask to speak to a product specialist and tell him what your trying to do. Worse case scenario, you send it back for full refund. I'd get the adapter and bag from same source. They ship real quick, same day normally and in all those years, they've NEVER been anything but helpful.
 I'm not surprised that the salespeople at Bass Pro didn't know what a "dromedary" is?? Many of the so called outdoor people at big retail outdoor stores are "catalog" outdoor people. I'm surprised they didn't tell you it was a CAMEL  ;D