Can the curtains and the mosquito netting be used on the same pergola?

Yes, they are two separate sets and can share one pergola. The curtains are black polyester panels you draw closed for shade and privacy, or tie back at the posts to open the sides again. The mosquito netting has a black fabric border with metal grommets and hangs from hooks under the beams; its fine mesh keeps mosquitoes and other insects out while the breeze still comes through, and it ties back at the posts the same way.

Both are sold as separate accessories, so you can start with one and add the other later, as long as both match your pergola's footprint.