Gen3 Marine Stainless Steel Thru-Hull Fitting The Gen3 Marine Thru-Hull Fitting is constructed of durable stainless steel and has a straight thread. The mirror-polish stainless steel instantly upgrades any vessel with a clean look and tong-term corrosion resistance. Specifications Total Fitting Length 3 Thread length 2.7 Hose ID 58 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Thru Hulls Product MPN 5-9023 Product UPC 81003746233