This is a high quality plastic thru-hull fittings for 1.5" pipe. This product is white in color. It is suitable for most of the boat application. We also have this product in two other sizes: Small Size: For 0.75" Pipe , Medium Size: For 1" Pipe Check out our store to find the size that suits your application! Item: P41544 This is a high quality plastic thru-hull fittings for 1.5" pipe. This product is white in color. It is suitable for most of the boat application. We also have this product in two other sizes: Small Size: For 0.75" Pipe, Medium Size: For 1" Pipe. Check out our store to find the size that suits your application! Item: P41544