2 Aqueon Quiet Flow 3 Internal Power Filters for up to 3 gallon tanks. No filters included. Takes XS filters.
2 Aqueon 10W Mini Heaters. The instructions on this say these heaters are for 2.5 to 5 gallon tanks. I think the max is probably 3, depending on the fish.
These were installed once and worked great when installed. I wanted to upgrade to bigger tanks, so I do not have use for them.