Features: Its structure is designed to resist degradation due to chemical-and saline exposure. Very suitable for using in mobile well installations with overflow ports or as exhaust port of bilge pump. Adjustment through the bottom of ship for using on ship/yacht. Made of high quality ABS material, sturdy-durable and long service life. All sizes are available, to meet your different needs and requirements. Specifications: Material:Plastic Size:As Picture Shown Color:White Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Thru-Hull Hose Fitting