The Dynasty Black Gold 311 Quill Size 4 Watercolor Brush.
Not available on many sites or stores, my favorite watercolor brush is the Dynasty Black Gold QUILL 311 Size 4. I use it for most of my paintings and workshops. It holds the paint well, can paint large areas and tiny details. The Watercolor Brush is only about $12.00 and close to a typical size 8 round watercolor brush. It holds the paint wonderfully, has a great tip for details and can also cover large areas. Hard to find, I’ve provided a link to The Brush Guys page where you can purchase it.
Click here to connect to: TheBrushGuys.com Then scroll way down. There are other sizes available too. Please tell them I sent you!