My Account
Shopping Cart

Marine Products International 400-3006 White Vinyl Vent Blower Hose 3" ID x 50 Ft

Manufacturer

Marine Products International

<h3>About Marine Products International (MPI)</h3><p>Marine Products International — widely known in the boating world as <strong>MPI</strong> — has been a trusted name in rubber and plastic marine hose for the recreational boating industry since 1981. Operating out of Eastlake, Ohio, MPI has spent more than four decades engineering hose and plumbing solutions that keep engines cool, exhaust gases safely routed, and onboard plumbing systems leak-free. Their products are found on vessels ranging from weekend runabouts to performance inboards, and MPI consistently ranks among the top choices of U.S. boat manufacturers at the OEM level.</p><p>What sets MPI apart is a commitment to independent product testing and strict adherence to — and often exceeding of — industry standards set by organizations such as the SAE, USCG, and NMMA. Whether a boater needs a hose that stands up to hot exhaust gases, resists ozone degradation, or handles the vibration and panting of a working marine engine, MPI engineers their products to outlast the conditions they're built for.</p><h3>MPI Exhaust Hose</h3><p>The core of MPI's catalog is their extensive line of <a href="/13010-marine-products-international-exhaust-hose-13424">exhaust hose</a>. Available in both hardwall and softwall configurations, MPI exhaust hose is designed for reliable performance in the demanding environment of a boat's engine room. Hardwall variants handle longer runs where structural rigidity matters, while softwall options are ideal for short, straight connections. Each type is built to resist exhaust fumes, ozone, mild chemicals, and elevated temperatures.</p><h3>Wet Exhaust Systems</h3><p>MPI's <a href="/13010-marine-products-international-wet-exhaust-hose-201177">wet exhaust hose</a> is one of their most recognized product lines. Wet exhaust systems mix raw cooling water with engine exhaust gases to reduce heat before expelling them overboard — a setup used on the vast majority of recreational inboard and sterndrive boats. MPI's wet exhaust hose is engineered with double the ozone resistance required by SAE J2006 standards and is available in softwall, hardwall, and corrugated profiles to suit any routing challenge.</p><h3>Nylon Pipe &amp; Hose Fittings</h3><p>A hose system is only as reliable as the fittings that connect it. MPI's lineup of <a href="/13010-marine-products-international-nylon-pipe-hose-fittings-200724">nylon pipe &amp; hose fittings</a> provides lightweight, corrosion-resistant connection points that hold up in the wet, chemically active environment inside a boat's hull. Nylon fittings are particularly valued in freshwater, sanitation, and livewell plumbing runs where metal corrosion is a concern.</p><h3>Plumbing Parts &amp; Accessories</h3><p>Beyond hose, MPI offers a range of <a href="/200786-plumbing-parts-accessories-marine-products-international-13010">plumbing parts &amp; accessories</a> that complete a boat's onboard fluid management system. These components work in concert with MPI's hose lines to give boat builders and do-it-yourself owners a cohesive system from a single trusted manufacturer.</p><h3>Marine Hoses</h3><p>MPI's broader catalog of <a href="/13010-marine-products-international-hoses-200539">hoses</a> spans applications including water system hose, sanitation hose, bilge hose, and PVC corrugated hose. Each product category is backed by independent testing and the same engineering philosophy that has made MPI hose a staple on production boats across the country. When routine maintenance calls for a hose replacement, choosing the right MPI product ensures a fit and service life that meets the original build specification.</p>

Part Number

400-3006
09/17/2036 1:10 AM
Sale Price

$44.92

3 left at this price

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Marine Products International (MPI) 400-3006 is a white vinyl vent and blower hose designed for bilge ventilation applications aboard recreational boats and marine vessels. This is the Series 400 standard-duty vent ducting, available in a 50-foot coil for larger installations and replacements.

Constructed of flexible PVC vinyl supported by a helical steel wire, this hose maintains its round shape even when routed around tight bends and through confined engine compartments. The 3-inch inside diameter is the most common size used with standard marine bilge blowers.

Key Features:

  • 3" Inside Diameter — Compatible with standard 3" marine blower fittings and ports
  • White color — Series 400 White (Black equivalent is MPI 402-3006)
  • Wire-supported vinyl construction — Flexible yet shape-retaining for easy routing
  • Standard 3 mil wall thickness with 0.034" wire gauge
  • Resistant to ozone, UV, and weathering — Built to withstand harsh marine environments
  • Will not support a flame — Important safety characteristic for engine compartment use
  • 50-foot coil — Ideal for full boat builds or large replacement projects

MPI Series 400 vinyl vent hose is the preferred choice of recreational boat manufacturers across the USA and is the industry-standard solution for bilge gas and fume ventilation systems. The companion black version is available as MPI part number 402-3006.

Love the Amazon payment integration!

Order arrived quick and was as described.

So far, so good.

My 1st time purchase from your company, time will tell.

Easy money

Quick, easy and competitive prices.

Easy to order

i will let you know when i receive. i like the feel of the cream but do not care for the smell.

Autoplicity did a good job getting my order to me fast. Product looks like it is in good condition.

Quick and easy to order

easy to find what i needed and best prices on the internet.

Easy ordering and when i did have a question they answered right away! best price on the product too!

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy