▪ Magnet: None ▪ Mounting: B (Basic) ▪ Standard Shaft Type: W (Double Shaft with Single Flat) ▪ Angle Adjusting Unit: None ▪ Size: 30 ▪ Rotation Angle - Vane: 270S (Angle: 270 Single Vane) ▪ Port: Side ▪ Auto Switch: No Switch ▪ Number: 2 pcs. (Or None in the Case of No Switch)