Whitecap Industries S-3811C 90 Degree Thru-Hull Fitting with Barb, 1-1/4 Inch Hose Size, Stainless Steel/Nylon

The Whitecap Industries S-3811C is a 90 degree thru-hull fitting with barb, built from stainless steel and nylon for corrosion resistance in marine environments. It is designed to pass a hose through a boat hull at a right angle, letting the hose run flat against an interior surface instead of requiring a straight run out through the hull, which is useful in tight bilge, livewell, washdown, and drain plumbing installations where space behind the hull is limited.

The barb end accepts a 1-1/4 inch hose and is secured with a hose clamp (not included), while the flange seats against the hull with a 2-3/8 inch outer diameter for a solid mounting surface. Overall length is 4 inches with a thread length of 1-5/8 inches and a barb length of 1-1/2 inches, and the fitting requires a 1-1/2 inch cutout in the hull for installation. The stainless steel and nylon construction is intended to resist saltwater corrosion over repeated exposure.

Specifications

• Brand: Whitecap Industries
• Manufacturer Part Number: S-3811C
• Product Type: Thru-Hull Fitting
• Angle: 90 degrees
• Hose Size: 1-1/4 inches
• Flange Outer Diameter: 2-3/8 inches
• Thread Length: 1-5/8 inches
• Barb Length: 1-1/2 inches
• Overall Length: 4 inches
• Cutout Diameter: 1-1/2 inches
• Product Dimensions: 6.75 x 3 x 1.5 inches
• Material: 316 stainless steel and nylon
• Weight: 0.5 pounds
• UPC: 725060381110

Frequently Asked Questions

What hose size does the S-3811C thru-hull fitting accept? The Whitecap Industries S-3811C accepts a 1-1/4 inch hose on its barb end.

Is this thru-hull fitting straight or angled? The S-3811C is a 90 degree thru-hull fitting, so the hose barb sits at a right angle to the hull rather than running straight out.

What size hole do I need to cut in the hull? A 1-1/2 inch cutout is required in the hull to install the S-3811C.

What material is the Whitecap S-3811C made from? It is constructed of 316 stainless steel and nylon, materials chosen for resistance to marine corrosion.

What is the overall length of this fitting? The overall length of the Whitecap Industries S-3811C is 4 inches.

What is the flange outer diameter? The flange outer diameter on the S-3811C is 2-3/8 inches, which is the surface that seats against the hull.

How long is the barb on this fitting? The barb length on the S-3811C is 1-1/2 inches, with a thread length of 1-5/8 inches.

How much does the S-3811C weigh? The Whitecap Industries S-3811C weighs 0.5 pounds.

Does the S-3811C come with a hose clamp? The listed specifications for the S-3811C cover only the thru-hull fitting itself; a hose clamp is used to secure the hose to the barb but is a separate item.

What is the UPC for this part? The UPC for the Whitecap Industries S-3811C is 725060381110.

What applications is this fitting typically used for? The 90 degree design of the S-3811C makes it suited to plumbing runs such as bilge, livewell, washdown, or drain lines where a right-angle hull penetration is needed instead of a straight-through fitting.