This filter wrench features 64-millimeter x 14 flute size and It is built with a Heavy-Duty welded aluminum construction for strength. “Warning! When installing, tighten the cap to the specified torque as shown on the housing. Over-tightening may cause leakage and may damage housing! ” California Prop 65 - Warning, This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm