2 1/2" Plastic Exhaust Gooseneck | Vetus LT6565 Vetus Gooseneck 2 1/2 in. Plastic Gooseneck 2 1/2 in. inlet and 2 1/2 in. outlet Prevents seawater from entering into the engine via the transom Stainless steel brackets are supplied as standard with these goosenecks