

6" Aluminium Mushroom Vent – Marine/Narrowboat Roof Ventilator – Polished Aluminium, 4" Vented Area, Paintable, 4 Countersunk Fixing Holes – Boat, Canal Boat, Cabin Roof Air Vent
About this item
- ⭐ Essential Ventilation for Boats Improves airflow inside cabins, reducing condensation, damp & stale air Ideal for narrowboats, canal boats, yachts & marine roof installations
- ⭐ Durable Marine-Grade Aluminium Strong, corrosion-resistant aluminium construction Built to withstand harsh UK marine environments
- ⭐ Paint-Ready Finish Can be over-coated with conventional paints after priming Perfect for colour-matching your boat roof
- ⭐ Secure & Easy Installation 4 pre-drilled countersunk fixing holes for flush mounting Quick install on steel, timber, or fibreglass surfaces
- ⭐ Practical Low-Profile Design Classic mushroom shape prevents rain ingress Dimensions: 6" outer diameter | 4" vented airflow area
Product description
Ensure reliable airflow and long-lasting durability with this 6" Aluminium Mushroom Vent, designed specifically for narrowboats, canal boats, and marine roof installations. Built from marine-grade polished aluminium, this vent provides excellent resistance to corrosion, making it ideal for the demanding UK boating environment. The traditional mushroom profile protects against rain while allowing consistent ventilation to reduce condensation, dampness, and musty cabin air. For boat owners wanting a seamless look, the vent can be painted to match your roof finish after suitable priming — perfect for both restorations and new builds. Installation is simple thanks to four countersunk fixing holes, ensuring a secure, flush fit on steel, timber, or fibreglass surfaces. Whether you're upgrading ventilation, replacing an old vent, or fitting out a new narrowboat, this mushroom vent delivers reliable performance, durability, and a clean professional finish. Material: Aluminium Finish: Polished Aluminium Outer Diameter: 6 inches Vented Airflow Diameter: 4 inches Fixing: 4 countersunk screw holes Paintable: Yes (after priming)
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What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
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