Attwood's Stainless Steel Thru-Hull is an above-waterline fitting designed for boat owners who value durability, straightforward installation, and a refined finish. With a 5/8" inner diameter and a mirror-finish Enhanced 316 stainless steel body, it delivers long-lasting strength and corrosion resistance on any vessel.
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Material and finish: Enhanced 316 stainless steel alloy with a mirror finish and passivation for added protection against corrosion in harsh marine environments.
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Durable construction: Thick sidewalls and high-capacity design to withstand continual stress and hose flexing over time.
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Installation features: Includes a silicone gasket and a sealant bead channel under the flange for a reliable, leak-free seal; wrench flats or an end notch allow easy gripping from inside the hull for one-person tightening.
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Connection type: Versatile barbed tail ends that accommodate multiple hose clamps for secure connections.
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Standard-thread design: Full-length thread facilitates tightening on thicker hulls (max hull thickness 1-1/16").
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Hose size: 5/8" inner diameter.
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Key dimensions: Flange diameter 1-7/8"; Thread outer diameter 1"; Thread length 2"; Barb length 1-1/4"; Total length 3-3/4".
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Install hole saw size: 1-1/8"
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Thread specification: NPSM 3/4"
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Usage: Designed for installation above the water line only.
Designed to keep your marine system secure and leak-free, this Attwood thru-hull blends premium materials with practical features that make installation straightforward and reliable. Its corrosion-resistant construction, sealed installation path, and user-friendly grip elements help ensure long-term performance and a refined look on your vessel.
