4" Flush Mount 12 Deg. Flange with Internal Flaps (Pair) 

4" Flush Mount 12 Deg. Flange with Internal Flaps
To view and download the PDF Tip Drawing CLICK HERE

4" Diameter polished stainless steel flush mount tip with a 12-degree flange. WITH internal flap installed. (SOLD IN PAIRS)

Can also be used for side of hull

Disclaimer: Our internal flaps are designed and rated for applications up to 500 horsepower (HP). Operation beyond this limit may result in flap failure or complete flap loss. For engines exceeding 500 HP external flaps must be used.