3-1/2" to 4" I.D. External FlapperĀ 

3-1/2" to 4" I.D. External Flapper

These are excellent American-made flaps that will not curl like cheap import copies. These are a must for boats with a very close distance between exhaust ports and the water line Clamp is included. This flap has a 4" ID and must be cut down for 3-1/2" applications. Sold each.

MSRP: $24.99
Your Price: $19.99
You Save: 20% off MSRP!

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