McKesson, Calculi Strainer McKesson Mesh Screen, Built-in Tab, White Plastic, Disposable All 24 Hour Specimen, Case of 100Product Description McKesson Calculi Strainer Mesh screen is 60 square per square inch, which is the optimal size for filtering the smallest stones while allowing unobstructed flow through. Built in tab for easier handling and sanitary conditions. Durable white plastic construction. Rinsable plastic allows one patient to use strainer for several days. Fits conveniently into 24 hour specimen collection containers. Single Patient Use Disposable Not Made