The Spirotrap® dirt separator creates a low-velocity area which allows dirt and scale of all sizes to sink to the bottom of the unit. Since particulate is isolated outside the main flow in a large capacity collection chamber, the unit's pressure drop remains constant and prevents blockage. The Spirotrap can be installed inline, and collected material can be flushed while the system is operating. Sizes range from 3⁄4-in. through 36-in pipe. — Spirotherm, Inc. Glendale Heights, IL