the box TopHat for Achat, Replacement Speaker Flange, Iron flange, Outer diameter: 114 mm, Inside diameter: 36 mm, Hole spacing in square: 62 mm, Installation depth: 97 mm, Mounting holes: 8 mm@+*Suitable for:*@+@+, Achat 115 M, Achat 112, Achat 112 M, Achat 115 MA, Achat 112 MA, Pyrit 212 Sub