Check the listing for details. Waters 700005487 Ref Probe Microfilter Replacement Frit Qty: 1. Condition: New, Made in United States. Listed at 14.99 USD. Ref Probe Microfilter. The item you receive may be different from the actual item in the photo in the case of multiple quantity lots. “The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies.