Boat part number 8304733 is a new thru-hull for Lund Boats part number 1867755 . This thru-hull is constructed out of glossy black plastic. It measures approximately 5 3/8 L x 1 3/4 Dia. overall. It requires an approximate 1 3/8 Dia. cutout and has a max panel thickness of 3 . It connects via (1) 1 3/4 L x 1 1/8 Dia. barbed hose connection. Please see photos for additional measurements. Specifications: Boat Manufacturer: Lund Boats Part Number: 1867755 Material: Plastic Color: Black Finish: Glossy Overall Dimensions: 5 3/8 L x 1 3/4 Dia. Cutout: 1 3/8 Dia. Max Panel Thickness: 3 Connections: (1) 1 1/8 Dia. Barbed Hose Sold as seen in pictures. Customers please note every computer shows colors differently. All measurements are approximate. Hardware and instruction / installation manual not included.