No input on the H2JO Strainer other than I don't understand why you would want to screw the strainer onto the cup/bottle.

For coffee I use an MSR MugMate Coffee/Tea Filter. It doesn't screw on, you just make the coffee to whatever strength you desire and then toss the grounds and put the filter away.
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Better is the Enemy of Good Enough.
Okay, what’s your point??