● Can be used in tough environments. ● Safety valve in retract side of cylinder helps to prevent damage in case of accidental over pressurization. ● Plunger wiper reduces contamination, extending cylinder life. ● Double acting allows for positive retraction. ● Collar threads, plunger threads and base mounting holes for easy fixing. ● Interchangeable, hardened grooved saddles are standard. ● ECR-400 coupler and dust cap included with all models.