Clean Series Without Clean Series Magnet D (Built-in Magnet) Mounting Direction B (Lateral Mounting) Bore Size 12 Stroke 20mm Action D (Double Acting) Rod End Thread M (Rod End Male Thread) Auto Switch No Switch Lead Wire or Prewired Connector 0.5m (Or None in the Case of No Switch) Number 2 pcs. (Or None in the Case of No Switch)