The locking flush deck mount works with all Scotty post mount rod holders. This mount has a removable spray cover and a locking tab that lets you lock in your post mount rod holder. Once the rod holder is locked in you can rotate it 360 degrees.
For all Scotty post mount rod holders
To use the new Scotty “lock-down” mount system, simply choose the best direction to fish from and insert the rod holder or accessory, pushing the post straight down into the mount