ITEM NAME:2x Yacht Clam Shell Midget Vent Stainless Steel Hose Cable Cover Ventilation Description: This item for sale is a brand new Stainless Steel Midget Clam Shell Vent featuring polished stamped stainless steel construction. These small vents have many uses. They are attractive covers for locker ventilation holes. The Clam shell shape can be used as a protective shield for cables and electrical wiring passing through transoms, cabin sides, etc. Some boatbuilder use these vents as water intake scoops for cutless bearing cooling systems.Every production.The Clam shell shape can be used as a protective shield for cables and electrical wiring passing through transoms, cabin sides, etc. 2 Piece Clam Shell Vents. These small vents have many uses. They are attractive covers for locker ventilation holes.