White Plastic Thru-Hull Fitting - 1-1/8" Inner DiameterThis thru-hull fitting is made with a durable, thermoplastic construction, which prevents electrolysis.Specifications: Hose Size: (inch) 1-1/8" Inner diameter Stem Length: (inch) 3-1/4" Max Hull Thickness: (inch) 1-1/4" Flange Diameter: (inch) 2-1/4" Installation Hole Size: (inch) 1-3/8" Drain Plug: (inch) 7/8" Construction: Polypropylene Color: White *Plastic thru-hull connectors are designed for installation above the water line only Specifications: Hose Size: 1-1/8" Material: Plastic Box Dimensions: 3"H x 4"W x 7"L WT: 0.25 lbs UPC: 022697387431 Quick Guide (pdf)