316 Marine Grade Stainless Steel Thru Hull Fitting Grandado Boat Hardware Accessories 1" Hose Barb 316 Stainless Steel Boat Through Stainless Steel BARRUS Barbed Thru Hull Enhanced 316 4Boats Marine Hardware Barbed Thru Hull Fitting Stainless Steel 316 Through Departments WHITECAP THRU HULL WITH BARB 316 STAINLESS STEEL. Cast from certified enhanced 316 stainless steel alloy for superior strength and corrosion resistance; mirror polished on all visible surfaces and passivated for added protection. Designed for above waterline marine installations. Package includes 1 thru hull fitting. Cast from certified enhanced 316 stainless steel alloy for superior strength and corrosion resistance. Polished to a mirror finish on all visible areas and passivated for additional protection. Thick steel sidewalls withstand continual stress and hose flexing, ensuring long lasting durability and reliable service life. Provides 2 mile, 360?? illumination suitable for boats up to 39. 4 ft (12 m). Channel under the flange holds a bead of sealant; wrench flats or an end notch allow tightening from inside the hull for a secure installation. Barbed tail ends provide ample room to secure multiple hose clamps for flexible, leak free connections. Available in standard full length thread for thick hulls and in a short thread model for corners or confined areas. Intended for installation above the waterline only. Package includes 1 Enhanced 316 stainless steel thru hull connector. Material: Enhanced 316 stainless steel alloy. Finish: Mirror polished and passivated. Thread models: Standard and short available. Usage: Above waterline only. High quality construction ensures long lasting durability, simplified fitting and secure, trouble free marine service.