What kind of self-watering pots are these?

A few kinds are:

Home Depot's system where you have an outer ceramic pot and then a clay pot on the inside. Neither of these have holes. You then put water between them and the inner pot soaks up moisture.

Earthbox/Gardener's supply which is a large rectangle all one piece.

Walmart which has a very small reservoir in what look like normal round plastic pots.

Homemade Earthboxes out of either large rectangular containers or 5 gallon food buckets.

They're the Home Depot ones you describe. I found a similar one on ebay with a picture to show you- see the link below. Thanks for looking!

Here is a link that might be useful: blue self-watering pot