SMC CDS1D125-400 CDS1 Series Air Cylinder SMC MSRP: Now: $549.90 Was: CDS1 Series Air CylinderLarge bore air cylinder of the square cover, tie-rod type;With auto switch (Series CDS1: CDS1, CDS1W, CDS1 Q);; The air hydro type is only available in 125, 140 and 160 CDS1D125-400