SMC CKP1A50-50Y-X689 MSRP: Now: $328.60 Was: The Ck1 Series Is A Clamp Cylinder Available In Two Styles Of Clevis Widths *. It Is A Non-Lube, Compact, Lightweight Cylinder With A Built-In Speed Controller. Gaiters Are Unnecessary Because A... CKP1A50-50Y-X689