Large 3" Marine Wire Cable Vent Cover, Clamshell Vent for Boat, white
3" Marine Wire Cable Vent Cover (Clamshell Vent) — Durable, Splash-Proof Boat Vent
A reliable, low-cost solution for protecting and routing wiring, hoses, and cables on marine vessels. Designed for salt-air environments, this clamshell vent combines marine-grade nylon construction with 100% ABS components to deliver strong corrosion resistance and an attractive, smooth finish.
Why this Vent Cover is Ideal for Boats
- Marine-grade nylon construction: Excellent seawater corrosion resistance — built to withstand salt air and marine environments.
- 100% ABS components: Carefully molded ABS provides a smooth flush surface around the screw covers and retains its appearance over time.
- Lightweight & cost-effective: Nylon offers a lighter and lower-cost alternative to metal, while providing strength and service life comparable to stainless steel.
- Splash-proof design: Perfect for outside venting of wiring cables, wires, hoses, or similar penetrations where splash protection is required.
- Smooth finish: Flush screw cover area and bevelled edges for a neat, snag-free installation.
Product Specifications
| Feature | Details |
|---|---|
| Material | Marine-grade Nylon; 100% ABS components |
| Use | Splash proof openings or outside venting for wiring, cables, hoses |
| Finish | Smooth, flush screw covers; smooth and thick clamshell edges |
| Color | White |
| Product dimensions | 6.14 x 5.2 x 1.57 inches |
Note: Dimensions are the overall product size. Cutout and mounting hole spacing will vary by model — confirm the cutout template or model number before drilling.
Installation & Best Practices
- Plan the routing: Lay out the cable path and make sure the vent location avoids direct spray or high-turbulence areas when possible.
- Measure and mark: Use a template or measure the vent footprint before cutting. Verify backing support and interior clearance.
- Seal & fasten: Use marine-grade sealant around the perimeter to prevent water ingress. Secure with stainless steel or marine-grade fasteners — the flush screw covers hide the heads for a clean look.
- Protect cables: Add grommets or edge protection if the cable passes directly through the vent opening.
- Maintenance: Rinse with fresh water after heavy salt exposure and inspect annually for wear or UV degradation.
Benefits at a Glance
This clamshell vent cover delivers a practical balance of appearance, performance, and cost. It is an excellent choice for boat owners, riggers, and marine electricians who need a neat, splash-resistant way to route electrical wiring and hoses through exterior panels.
- Durable in salt-air environments
- Low weight, easy handling and installation
- Cost-efficient compared to metal alternatives
- Neat, finished look with flush screw covers
FAQ
- Is this vent waterproof?
- It is splash-proof and intended to protect against spray and light water exposure. For fully watertight installations, use a dedicated marine cable gland or bulkhead fitting with IP-rated sealing.
- Can I use it on fiberglass, aluminum, or wood?
- Yes — the vent is suitable for common boat materials. Ensure appropriate backing and fasteners for secure mounting.
- How many cables can pass through a 3\" vent?
- The number depends on cable diameter. Measure combined cable diameter and leave clearance for sealant and movement. Consider using multiple vents for larger bundles.
