Jianshui wood fired unglazed pots made by yixing master. Astro-pots 1 and 2 are sold but 3 still needs a good home.
Some unglazed tea pots are very porous and will absorb the oils and flavors of the tea brewed in them. The astro-pots are Jianshui, which are fired at very high temperatures so the clay is not as porous and won't absorb as much flavor. It is often recommend that you stick to one type of tea in with unglazed pots. But it takes a long time for the flavors to build up and I think it's fine put different types in it. Although I'd stick to broad categories: darker teas vs lighter tea: shu, black and dark roast oolongs vs young raw puerh. You can dedicate pots to more specific types of tea as you collect more and more tea pots!
Before first use rinse your astr-pot twice with boiling water.