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

2-1/2" to 3" I.D. External Salisbury 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 3" ID and must be cut down for 2-1/2" applications. Sold each.