Model Variants (Including Prototypes)
15-cm sFH 18 - Base Series Designation
15-cm sFH 18(M) - Modified propellant for increased range; fitted with muzzle brake; replaceable barrel liner.
15-cm sFH 18/40 - Fitted with sFH 40 series barrels; retaining sFH 18 carriage.
15-cm sFH 18/43 - Provision for bag charge; sliding block breech.
150 H/40 - Finnish Designation of 15cm sFH 18.
Cannone da 149/28 - Italian Designation of 15cm sFH 18.