Lightweight, low profile design for use in confined spaces.Baked enamel finish for increased corrosion resistance.Plunger wiper reduces contamination, extending cylinder life.3/8" fast flow coupler and dust cap included on all models.Grooved plunger end with threaded holes for mounting tilt saddles.Integral handle on ZRB-100 for easy carrying.Plated steel plunger.Single acting spring return.Country of Origin: Taiwan