Lewmar 15'1/4 G4&300' 1/2 Line
Lewmar's 3-strand rope is an economical choice for your windlass rode. Keep in mind, the windlass does not stow the rode in the anchor locker - gravity does. So make sure you have ample depth and volume in your anchor locker to accommodate the length of rode you have chosen.
3-Strand is typically 20-30% less expensive than premium plaited anchor line.
3-Strand line, when used in salt water, will stiffen over time. It can be soaked in a bucket of fresh water and fabric softener overnight (the longer the better) to bring back a more flexible condition. If this does not yield acceptable results, it should be replaced.