| Hollow plunger design allows for both pull and push forces Single-acting, spring return Nickel-plated, floating center tube on models over 20 ton increases product life Baked enamel finish for increased corrosion resistance Collar threads for easy fixturing RCH-120 includes AR-630 coupler and has 1/4 nptf port RCH-121 and RCH-1211 have FZ-1630 reducer and AR-630 coupler, all other models feature CR-400 coupler |