Seachoice 200 Series Softwall Wet Exhaust Hose – 4" x 4-1/2'

SAE J2006 R1 Certified Softwall Wet Exhaust Hose – 4" Diameter, 4-1/2' Length

The Seachoice 200 Series Softwall is a premium wet exhaust marine hose certified for wet exhaust service to SAE J2006 R1 standard — the benchmark specification for marine exhaust hose. Designed for short, straight exhaust connections, it handles the demanding combination of hot engine exhaust gases and cooling water that flows through a typical inboard or sterndrive wet exhaust system.

Heavy-wall construction with multiple plies of nylon spiral cord prevents wall collapse, panting, and vibration under exhaust pressure pulses — common failure modes in undersized or substandard exhaust hose. The compound is formulated for maximum resistance to heat, engine exhaust, UV, weathering, and ozone, with double the ozone resistance required by the SAE J2006 standard. A blue stripe provides easy visual identification for wet exhaust applications.

Key Features

• Certified to SAE J2006 R1 standard for wet exhaust service
• Double the ozone resistance required by SAE J2006
• Heavy-wall multi-ply nylon spiral cord construction — prevents collapse, panting, and vibration
• Resists engine exhaust, high temperatures, UV, weathering, and ozone
• Temperature range: -20°F to 220°F (-29°C to 100°C)
• Blue stripe for easy identification
• Recommended for short, straight connections
• 4" interior diameter × 4-1/2' length
• 200 Series

Specifications

• Interior Diameter: 4"
• Length: 4-1/2'
• Series: 200 (Softwall)
• Certification: SAE J2006 R1
• Temperature Range: -20°F to 220°F (-29°C to 100°C)
• Colour Coding: Blue stripe

Parts Desk Insights

Best Use Case: The 200 Series Softwall is the right recommendation for replacing wet exhaust hose on inboard and sterndrive engines where the exhaust run is short and straight — typically the section between the exhaust manifold water injection elbow and the through-hull or waterlock muffler. The 4" diameter and 4-1/2' length suit many common inboard engine applications. Always confirm the customer’s existing hose inner diameter and run length before selling.

Softwall vs. Hardwall: Softwall hose (this product) is suitable for short, straight runs with minimal bends. For longer runs or installations with significant bends and curves, a hardwall or corrugated exhaust hose is required — softwall hose can kink or collapse under tight bends. If the customer’s exhaust run has multiple bends, recommend a corrugated or reinforced alternative.

SAE J2006 Compliance: ABYC and Transport Canada require that wet exhaust hose meet SAE J2006 standards. This hose is certified to R1 (the standard wet exhaust rating). Do not substitute bilge hose, water hose, or non-certified hose in exhaust applications — the temperature and chemical resistance requirements are significantly higher.

Installation Note: Wet exhaust hose must be installed with a continuous downward slope to the through-hull to prevent water from backing up into the engine. Secure with stainless exhaust hose clamps (double-clamp each end). Inspect annually for softening, cracking, or delamination.