Flat Mount Adapter. Enables half-bowl heads to be locked into place and used on standard 3/8"-16 threaded mounts. If you’re using a slider and a half-bowl head, this is what you need.

75mm and 100mm Compatible. The Manfrotto 325N itself is sized to accept 100mm half bowls. We also include the Manfrotto 319 75mm to 100mm Bowl Adapter, allowing you to mount 75mm half-bowl heads.