THRU-HULL CONNECTION (PERKO)The THRU-HULL CONNECTION (PERKO) is a high-quality and reliable marine fitting designed to provide a secure and watertight connection between the hull and various marine components. This specific variation features a 1" pipe size and is threaded to approximately 3/8 inch from the flange. It is constructed from durable cast bronze, ensuring long-lasting performance even in demanding marine environments.Technical Information: Pipe Size: 1 inch Mouting Hole Diameter: 1-5/16 inches Maximum Hull Thickness: 1-7/8 inches O.D. Flange: 2-3/16 inches Model Number: 0322DP6PLB Ship Weight: 4.1/18.0 lbs. Origin: Made in the USA Features: Machined flange designed to fit the hull and retain bedding compound for a secure installation Threaded neck for easy connection to compatible marine components Durable cast bronze construction ensures reliability and longevity Learn More:For more information about THRU-HULL CONNECTION (PERKO), please visit the Thru-hull fitting Wikipedia page.