ITEM NAME:3/4'' Marine Boat Thru Hull Connector Fitting - 316 Stainless Steel Hardware Description: 3/4" Marine Boat Thru Hull Fitting Marine-Grade 316 Stainless Steel, surface polished. Corrosion resistance and durability in the saltwater environment. The outfall as a bridge is used for aerobic equipment installation and bilge discharge, and can only be installed above the waterline. Great accessories for boat/marine/yacht/kaya. Specification: Material:316 Stainless Steel Size:75x50x50mm/2.95x1.97x1.97'' Center hole diameter: Approx. 19mm Color:Silver Package Includes: 1 Piece 1/2" Boat Thru Hull Fitting Note: 1. Please check as much as possible to make sure the item is the one that you need. 2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) SKU: DMO0000523767024914.3/4" Marine Boat Thru Hull Fitting. 1 Piece 1/2" Boat Thru Hull Fitting. Marine-Grade 316 Stainless Steel, surface polished. Material:316 Stainless Steel. Great accessories for boat/marine/yacht/kaya.