I will be on foot. The filter is rather large but not unreasonably so. I don't consider myself an "ultralight" backpacker by any stretch but this does have considerable bulk. More designed for a basecamp perhaps. Still, It was a gift and I guess good or bad I will see how it performs. Besides, I hate having fancy stuff unused.

I only use iodine if I wants to spare stove fuel and lighting open fires is unwise or prohibited. Beside being a good backup water cleaner in liu of boiling it works wonders in its intended use for small cuts and scrapes.