Catalog » EC12 Meter - Kits, Parts and Hardware EC12 Rudder SKU/ID: EC12-Rudder $95.00 Rudder color: Rudder Shaft size : 5/323/16 Short DescriptionEC12 Rudder This foam cored rudder was designed by Mark Reinhart for CPM. Fiberglass products are custom built to order. Contact CPM for current build que and delivery time.