Accurate readings of settled solids in noncaustic liquids. Ideal for sewage treatment plants, chemical plants and food processing facilities. Comes in three five-foot sections of 3/4"" plastic pipe with screw-type connectors. Additional sections can be added if required. Includes a nylon line for raising the samples. Do not use in liquids over 74°C. A cleaning rod used with cotton strips is useful when removing a greasy residue. Holds 89 ml per foot.