Series 200 Exhaust/Water Hose, No Wire (Sold per foot)

Heavy-walled marine hose principally for use in wet exhaust and marine water applications.

In the engine compartment of a marine vessel, not all hose is created equal. The wet exhaust system is one of the most thermally and chemically demanding environments on a boat — hot exhaust gases mixed with cooling water, ozone exposure, fuel and oil contamination, bilge acids, salt water intrusion, and constant vibration cycling. Using the wrong hose in this application isn't just a maintenance issue — it's a safety risk. Shields Series 200 Exhaust and Water Hose is engineered from the ground up for exactly these conditions, delivering heavy-wall construction, premium fabric reinforcement, and a compound specifically formulated to handle everything the marine engine compartment throws at it.

Purpose-Built for Marine Wet Exhaust and Water Systems.
The Series 200 is Shields' workhorse marine hose, designed for the full range of engine compartment water and exhaust applications where wire reinforcement is unnecessary — including straight runs, gentle curves, and installations where the hose maintains its shape without the need for internal wire support. Wire-reinforced hose is the right choice for high-vacuum or crush-prone applications; where those conditions don't exist, the no-wire Series 200 offers a cleaner, more flexible, and more economical solution without sacrificing any of the chemical or thermal performance the application demands.

Heavy-Wall Construction for Long Service Life.
The Series 200 features a heavy-wall cross-section that provides meaningful resistance to external compression, abrasion from hose clamps and chafing points, and the sustained mechanical stress of engine vibration. Thin-wall hose degrades faster at clamp points, develops micro-cracks at flex zones, and is more susceptible to collapse under sustained heat exposure. The Series 200's wall thickness is intentionally specified to provide a long service life in demanding installations — reducing replacement frequency and the labor cost that comes with it.

Premium Fabric Reinforcement — The Structural Core.
Inside the heavy rubber walls, Shields engineers a fabric reinforcement layer that provides the hose's structural integrity under internal pressure and external mechanical loading. This reinforcement resists expansion under pressure, maintains the hose's round cross-section through bends and clamp points, and prevents the kind of wall delamination that can cause sudden hose failure in high-heat wet exhaust service. Fabric-reinforced construction is the industry standard for marine exhaust and water hose in demanding applications.

Compound Formulated for the Marine Engine Environment.
The rubber compound used in Series 200 is not general-purpose — it is specifically formulated to resist the unique combination of degradation factors present in marine engine compartments:

• Engine Heat: Sustained exposure to elevated temperatures from exhaust gases, engine block radiated heat, and hot coolant cycling
• Exhaust Fumes: Resistance to the hydrocarbon compounds and combustion byproducts carried in wet exhaust streams
• Ozone: Outdoor and coastal environments generate elevated ozone levels that attack and crack rubber compounds not specifically formulated to resist it
• Mild Acids: Bilge water and condensation can carry mildly acidic compounds that degrade unprotected rubber over time
• Engine Coolant: Glycol-based coolants are chemically aggressive to many rubber formulations; Series 200 is compounded to resist them
• Salt Water: The year-round marine environment demands resistance to salt water both inside and outside the hose

Broad Application Compatibility.
Shields Series 200 is appropriate for a wide range of engine compartment installations:

• Wet Exhaust Connections: Primary application — straight runs in marine wet exhaust systems where the hose does not need to flex around sharp bends or resist vacuum
• Engine Water Circulation: Raw water and fresh water cooling system plumbing
• Heat Exchanger Connections: Water-side connections on heat exchanger systems
• Heavy-Duty Discharge Lines: High-volume water discharge applications
• Bilge and Utility Water Lines: Where chemical resistance and wall strength are required

Sold Per Foot — Cut Exactly What You Need.
Series 200 hose is sold by the linear foot, allowing you to purchase precisely the length required for your installation without paying for excess material. Measure your run carefully, add a few inches for clamp engagement at each end, and order the exact footage you need. For high-volume or professional yard applications, longer cut lengths are available.

Black Heavy-Wall Synthetic Rubber — Industry-Standard Appearance.
The Series 200's black finish is the standard specification for marine exhaust and water hose, providing a clean, professional appearance in the engine compartment consistent with OEM installations and professional repower work.

For installations requiring wire support — high-vacuum bilge applications, runs prone to external crush loading, or sharp-bend configurations — see the Shields Series 148 Wire-Reinforced Marine Hose. Always use stainless steel hose clamps and inspect hose connections annually for signs of wear, cracking, or softening.

Key Features

• Hose Type: Heavy-wall fabric-reinforced synthetic rubber — no wire
• Primary Application: Marine wet exhaust systems; engine water circulation; heat exchanger; heavy-duty discharge
• Construction: Black heavy-wall synthetic rubber with internal fabric reinforcement layer
• Chemical Resistance: Engine heat, exhaust fumes, ozone, mild acids, engine coolant, and salt water
• Wire Reinforcement: None — designed for straight runs and installations where crush resistance is not required
• Wall Type: Heavy-wall specification for extended service life and clamp-point durability
• Sold By: Linear foot — purchase exact length required
• Part Number (Example): 116-200-3003
• Color: Black
• Clamp Recommendation: Stainless steel hose clamps at all connections
• Inspection Interval: Annually — inspect for cracking, softening, or hardening at clamp points and flex zones

Specifications

• Application: Straight connections in wet-exhaust systems, engine water circulation, heat exchangers
• Approvals: SAE J2006 type R1
• Construction: Heavy-duty synthetic rubber reinforced with multi-ply synthetic cord
• Temperature Range: –20° to 200°F continuous, 250° intermittent
• Warranty: Lifetime against defects

How to Order the Right Length

What You Receive

• Shields Series 200 Marine Exhaust/Water Hose — cut to your specified length (sold per foot)
• Hose clamps, fittings, and installation hardware sold separately