Stainless Steel Short Thru Hull 1 1/2"

Product Description

Transform your boat’s appearance and performance with our premium 316 stainless steel thru‑hull fitting, purpose‑designed to combine style and function. With a highly polished flange, this fitting delivers a sleek, mirror‑like finish that elevates your boat’s exterior aesthetics while providing durable marine hardware you can trust.

The short thread design makes this fitting perfect for tight or compact hull installations where standard fittings may not fit cleanly. And with a hose barb sized for 1‑1/2″ I.D marine sanitation hose, it offers broad compatibility with marine plumbing systems including sanitation, bilge, livewell, sink, or washdown plumbing.

Equipped with a 316 stainless mounting nut, this thru‑hull fitting ensures a secure, leak‑resistant installation, built to stand up to the demands of saltwater, sun exposure, and rugged marine environments.

Product Specifications 

• Material: Solid cast 316 stainless steel (marine‑grade, exceptional corrosion resistance)

• Outside Flange Diameter: 3‑1/8″ (≈ 79.4 mm)

• Thread Length: 1″ (≈ 25.4 mm)

• Overall Length Inside Flange: 2‑3/4″ (≈ 70 mm)

• Required Hole Size: 1‑7/8″ (≈ 47.6 mm)

• Hose Internal Diameter (I.D.): 1‑1/2″ (≈ 38 mm)

• Included: 316 stainless steel mounting nut