Shields Marine Vinylvent Ducting Hose – Series 400/402, 3" White (3 ft.)
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Marine-Grade Bilge Ventilation Hose – UV-Resistant PVC with Anodized Wire Helix
The Shields Marine Series 400/402 Vinylvent is a flexible PVC ducting hose reinforced with an anodized wire helix for shape retention and crush resistance. Designed specifically for marine bilge ventilation applications, it safely channels engine compartment fumes and gases away from enclosed spaces — a critical safety function on any powered vessel.
The anodized wire helix maintains the hose’s round profile even through tight bends and routing around obstacles, while the PVC construction resists UV degradation and ozone exposure for long service life in the marine environment. This listing is for a 3-foot cut length — ideal for short runs, repairs, or replacing a damaged section of existing ventilation hose.
Key Features
- PVC construction reinforced with anodized wire helix for shape retention and crush resistance
- Resistant to UV, ozone, and weathering
- Flexible and easy to route through tight spaces
- White colour — Series 400/402
- 3-inch interior diameter
- 3-foot cut length
Primary Application
Designed for venting bilge fumes and engine compartment gases on powerboats and inboard-powered vessels. Meets the requirements for marine blower and ventilation ducting. Not intended for use as a fuel line, water line, or exhaust hose.
Other Lengths & Colours Available
- Shields Vinylvent Series 400/402 – White, Bulk Roll
- Shields Vinylvent Series 400/402 – White, 3 ft. (this item)
- Shields Vinylvent Series 400/402 – Black
Parts Desk Insights
Best Use Case: The 3-foot cut length is the right recommendation for customers replacing a short damaged section of existing bilge ventilation hose, or routing a blower outlet through a tight space where only a short run is needed. For full blower system installations or longer runs, recommend the bulk roll. Always confirm the customer’s interior diameter requirement — 3" is the standard size for most marine blower systems, but verify against the blower outlet and through-hull fitting size.
Ventilation Compliance: ABYC and Transport Canada standards require powered ventilation for gasoline-engine compartments. This hose is appropriate for use with a 3" blower in compliant ventilation systems. If a customer is building or replacing a full system, they’ll also need a blower motor, through-hull fitting, and appropriate clamps.
Series 400 vs. 402: Series 400 and 402 refer to the wire helix pitch and wall construction variants within the Shields Vinylvent line. Both are suitable for standard bilge ventilation — the distinction is primarily a manufacturer specification. Customers do not need to specify which series; fitment is determined by diameter.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.