If you don't want to spend too much money but still get a nice sounding nut, consider the GT611 by Guitar Tech. Made with high quality plastic with an ivory colour it will replace your run down nut for a fraction of the cost of other nuts. This one comes with 12 grooves to accommodate that many strings.
- Ivory colour
- High quality plastic
- Specially design for the 12 string guitar
- 48mm x 6mm