Whitecap 6545 Stainless Steel Thru-Hull with Barb measures to 1-1/2 inch hose and 5/8 inch hull thickness. Composed of high quality 316 stainless steel. Overall barb length is 3-1/8 in.
Thru-hull with barb 316 stainless steel construction Hole Size: 1-1/2"; Flange (outside diameter): 3-1/8" Thread Length: 1-1/4"; Barb Length: 1-1/2"; Overall Length: 3-1/8" Cutout: 2"; Max Hull Thickness: 5/8"