Whitecap Industries Straight Thru-Hull Fittings with Barb, Stainless Steel and Nylon - Available in 1" to 1-1/8" Hose

Whitecap Industries' straight thru-hull fittings with barb create a clean, secure through-hull connection for common boat plumbing runs, including bilge pump discharge, washdown systems, livewell fill and drain lines, and raw water intake. Each fitting combines a 316 stainless steel body with a nylon barb section, pairing corrosion resistance at the hull face with a barbed hose connection that grips tightly under a standard hose clamp. The straight-through design routes hose in a single direction, keeping plumbing runs simple and minimizing kinks or flow restriction. A wide flange seats flush against the hull or transom surface, while the threaded shank and nut pull the fitting tight from the inside for a watertight seal when properly bedded.

Specifications

• Brand: Whitecap Industries
• Type: Thru-hull fitting with barb
• Style: Straight
• Material: 316 stainless steel and nylon
• Color: Silver/gray
• Hose sizes available: 1 inch, 1-1/8 inch

Sizes & Options

This line is sold by hose size, so measure the inside diameter of the hose you are connecting before ordering. Choose the fitting whose barb matches your hose size for a tight, leak-resistant clamp connection; an undersized or oversized barb will not seal reliably even with a properly torqued hose clamp. Always bed the fitting with marine sealant and confirm the hull cutout matches the fitting's cutout diameter before final installation.