Comparable to Jabsco #50070-0040 and #50070-0200. Impeller Puller allows easier removal of flexible impellers from pumps. Tighten the side grips onto the impeller hub and turn the center screw shaft to pull the impeller out of the pump. Constructed of investment cast 316 stainless steel. USE ANTI-SEIZE ON ALL THREADS TO PREVENT GALLING.