Catalog » Rig Hardware EC12 Fenstermacher Spring Vang SKU/ID: EC12-Spring Vang $45.00 Short DescriptionEC12 Meter Fenstermacher Spring Vang - This spring vang is great for the advanced EC12 and Star 45 Racer. The spring vang allows vang sheeting up wind while at the same time allowing the mainsail leach to twist off when running.