Product Highlights Unique GR2 Bearing Design, reduces wear, extending life Collar threads and plunger threads enable easy fixturing Designed for use in all positions High strength alloy steel for durability Redesigned cylinder thread protector for ease of use Heavy-duty, pretensioned spring improves retraction speed Baked enamel finish for increased corrosion resistance CR-400 coupler and dust cap included on all models Plunger wiper reduces contamination, extending