ITEM NAME:Marine Boat Thru Hull | White Cutout 1-1/2 inch Hose Fitting- ABS Plastic Description: Made of high quality ABS plastic for durable use and long time services. Strong corrosion resistance and oxidation resistance, suitable for freshwater and seawater. Thru-Hull Connections: excellent corrosion resistance to UV & weather-aging. Direct replacement, easy to install, no drilling or cutting required. Straight Thru Hull Fittings are for use with hose. Specification: Material: ABS Plastic Mounting Hole Diameter: 1-1/2 inch (38mm) Length: 4.96 inch (126mm) Package Includes: 1x Boat Thru Hull Fitting Note: Please allow 1~3mm differs due to manual measurement. (1 inch = 25.4mm) Product color may vary slightly from what appears online due to monitor differences..Straight Thru Hull Fittings are for use with hose. 1x Boat Thru Hull Fitting. Material: ABS Plastic. Product color may vary slightly from what appears online due to monitor differences.