4" Exhaust Flapper & Clamp Backflow Preventer for Marine (18-4457, 12644A1, 12644Q01)

Includes: - 4" Exhaust Flapper & Clamp Backflow Preventer

Fits Models: - Universal / check fitment before purchase

Model Years: - Check fitment before purchase

Submodels: - Applies to listed models

Engine Options: - Compatible with standard engine options

Description: This 4" Exhaust Flapper & Clamp Backflow Preventer is designed for marine applications, ensuring efficient exhaust flow while preventing backflow. The durable construction ensures longevity in harsh marine environments.

Features: - 4-inch diameter for optimal exhaust flow - Designed to prevent backflow and water intrusion - Durable materials suitable for marine conditions - Simple installation with included clamp - Compatible with various marine engine setups

Part Numbers: 18-4457, 12644A1, 12644Q01