Title: Fits on the insulated Klean Kanteen models.
Review: I like fresh brewed coffee so I fill my Klean Kanteen with hot water and then hours later I open it, drop in the GSI H2JO with coffee grounds and let it sit for 2 minutes, give it a little stir and bam, fresh brewed coffee! The H2JO screws snuggly on the Klean Kanteen and the Klean Kanteen lid fits on top of the GSI H2JO. I would say by no means is it drip-proof or a tight seal so that's why I carry them separate and fit them together when I'm ready for coffee. A Klean Kanteen insulated travel cup and this GSI H2JO would make a perfect gift.
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