I ask because I had read the following that all seek recommendations too: What type of filters should I use for a 3 stage whole house water filter?, What kind of filter do I need for well water?.
I'm not the person that closed your questions, but:
This is a site for do-it-yourself Home Improvement. You asked for a portable water filter, not something that you would install as a permanent fixture in a house. The other questions that you linked to are about equipment that is installed in houses.
You already know all the specifications for the filter you're looking for. "Shop for me" questions like that are off-topic here. See also https://blog.stackoverflow.com/2010/11/qa-is-hard-lets-go-shopping/ for more guidelines about shopping questions.
The second question (about the electrically-powered filter) doesn't stand on its own. All the specifications are in the (non-powered filter question); I expect this is why it was closed as "unclear what you're asking" instead of "product or service recommendations".
You asked these questions on Travel hours before asking them here on Home Improvement:
Direct cross-posting like that is discouraged because it splits information in the answers across sites, making it harder to find for someone searching for the same information.