2″ Exhaust Thru-Hull, White w/Flapper

A 2″ white exhaust thru-hull fitting with a flapper designed for marine exhaust plumbing, helping help reduce water backflow when the engine is stopped, moving slowly, or backing down.

Key Features

• 2″ exhaust thru-hull fitting for marine exhaust plumbing
• White thru-hull body with flapper
• Flapper helps impede water backflow into the exhaust system and engine when stopped or moving slowly

Product Compatibility

• Marine exhaust thru-hull applications
• Wet exhaust system plumbing (as an exhaust discharge fitting)

Product Details

• Product title (as provided): 2″ Exhaust Thru-Hull, White w/Flapper
• SKU: 383-1200300
• Manufacturer part number: 1200300
• Hose size / fitting size: 2″
• Overall length: 4-1/2″
• Flange / thru-hull O.D.: 2-3/4″
• Flapper: Yes
• Color: White

Parts Desk Insights

Best Use Case: Use this thru-hull exhaust fitting when routing exhaust discharge through the hull and you want the flapper to help limit reverse water flow entering the exhaust system and engine when operation conditions change (stopped, slow-speed, or backing down).

Common Issues: Common service points include ensuring the fitting is installed with the correct sealing method for your hull penetration, checking that the flapper moves freely after installation, and inspecting related exhaust components/gaskets during maintenance so the mating areas stay watertight.

Related Products & Accessories

• Browse Exhaust Systems – Pair with the appropriate exhaust hoses/mufflers and any matching Centek exhaust components for a complete exhaust system.