Marine-Grade 316 Stainless Steel Straight Thru-Hull Fitting with a Hose Barb Connection (also referred to as a hose tail connector or scupper drain outlet).
Unlike the previously discussed fully threaded models, this configuration uses a combination design: the upper portion features machined threads with a hex backing nut for mounting securely through the hull, while the lower shank transitions into a ridged hose barb specifically engineered to hold flexible marine plumbing hoses tight using stainless steel hose clamps.

Key Technical Specifications
• Material: Investment-cast AISI 316 stainless steel, meticulously mirror-polished on the flange flange head to handle permanent saltwater immersion and prevent cosmetic oxidation.
• Secure Barb Interface: The multi-tiered, tapered ridges provide strong structural friction against the inner liner of your plumbing hoses, minimizing the risk of slips under pressure or vibration.
• Dual Internal Flaps/Notches: Inside the top lip, you will find integrated slots to drop in a matching deck-drain tool or step-wrench, keeping the unit perfectly stationary while the hex locking nut is tightened down from inside the bilge.

To help narrow down ordering links or matching hose lines, please specify:
1. What is the inner diameter (I.D.) of the hose you are connecting? (Common sizes include 3/4", 1", or 1-1/2")
2. Is this meant to serve as a gravity-fed deck drain or a bilge pump discharge outlet?
Haifan Rigging supply a range of marine boat hardwares. They come with a variety of fittings for each end to suit your particular application. Yachts, Sailboats, Ships and Other Fields.
If you wish to ask a question or need further advice, you are welcome to contact us. We'll be happy to help.
We look forward to hearing from you!






