316 Stainless Steel Boat Intake Strainer - High-Flow Thru-Hull Scoop (3/8"" - 3"")
Thru-Hull Hardware • Top Pick
Check PriceYour engine is gasping. Temperature gauge is pinned. Cooling lines are bone dry. You’re sucking weeds and air because some landlubber installed a plastic strainer that’s now brittle as a cracker. A cracked intake isn't just a repair; it’s a sinking hazard. You're dead in the water without flow.
Generic bronze or 304 stainless parts are garbage. They pit. They bleed rust. Electrolysis eats them for breakfast. Cheap plastic scoops crack under pressure or degrade in the sun. One heavy impact with a piece of driftwood and your intake is history. You want your hull integrity failing at 20 knots? Didn't think so. Stop buying toys for a man's job.
The 316 Stainless Steel Boat Intake Strainer - High-Flow Thru-Hull Scoop (3/8" - 3") is the only hardware that belongs below the waterline. It’s marine-grade 316. Tough. Corrosive-resistant. The hydrodynamic scoop profile forces water into the shank even at high speeds. It stays clean, stays solid, and won't fail when the sea gets angry.
| Feature | 316 Stainless High-Flow Scoop | Generic Plastic/304 |
|---|---|---|
| Material | Marine-Grade 316 Stainless | Nylon or 304 Steel |
| UV Resistance | Maximum (Indestructible) | Low (Brittle over time) |
| Price | Professional Investment | Cheap Junk |
Don't stop at the intake. Your ground tackle is probably rusted through, too. Secure your vessel with a 316 Stainless Steel Danforth Boat Anchor for the sand, or grab an AirowMarine 316 Stainless Steel Plow Anchor if you're hitting rock. Even a small tender needs a Folding Grapnel Anchor that actually bites. Do it right, or stay at the dock.
- Molybdenum
- The chemical element added to 316 stainless steel to prevent pitting and crevice corrosion in salt water.
- Laminar Flow
- Fluid particles following smooth paths in layers, essential for efficient water intake without cavitation.
If you need more convincing, go read the horror stories on The Hull Truth. Then come back and buy the right gear.
FAQ
- Will this intake scoop cause significant drag or cavitation at high speeds?
- No. The hydrodynamic scoop profile is specifically engineered to minimize turbulence. Visual forensics of the slot angles show they are tapered to direct water efficiently into the shank while maintaining a laminar flow across the hull surface.
- Is 316 stainless steel really necessary, or is 304 sufficient for lake use?
- While 304 is okay for freshwater, 316 contains Molybdenum which provides critical resistance to pitting and crevice corrosion. For any vessel that might ever enter brackish or saltwater, 316 is the required standard to prevent structural failure over time.
- How do I ensure a watertight seal during installation?
- The product features a wide integrated flange and deep precision-cut threads. We recommend using a high-quality marine-grade sealant (like 3M 5200) between the hull and the flange, then securing the included 316 stainless steel nut to the internal side of the hull.



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