Description: 【Material】: This boat thru-hull connector is made of 316 stainless steel, ensuring durability and longevity even in harsh marine environments. 【Ventilation Function】: The thru-hull connection provides ventilation, allowing air to circulate freely, reducing condensation and preventing the build-up of harmful gases. 【Marine Accessory】: It's an essential accessory for boats, yachts or any other marine vessels that require efficient ventilation systems. 【Easy Installation】: The design allows for easy installation on your boat's hull or cabin structure. No special tools are required. 【Sleek Design】: With its polished stainless steel finish, this thru drain connector not only serves a functional purpose but also adds a sleek and modern aesthetic to your vessel.   Specification: Material: 316 Stainless Steel Size Chart:0.5inch: 1/2" Package Includes: 1x Marine Boat Thru-Hull Connector Note: Colors might be different due to different monitor display. Manual measurement may cause slightly difference in size.