Clarion®Green BIO are a series of readily biodegradable anti-wear hydraulic fluids formulated with premium high oleic natural esters derived from renewable resources and zinc free ashless additives to provide protection for demanding hydraulic systems, especially those operating in environmentally sensitive areas. Clarion Green BIO hydraulic fluids are zinc free. Zinc compounds are regulated as priority pollutants under provisions of the Clean Water Act and SARA Title 313.