The R211100 Vac-Mate multi-function vacuum/skimmer attachment allows you to control a suction cleaner while maximizing surface skimming. all with one simple setting of the control handle. The Rainbow Vac Mate makes any suction powered cleaner and wall skimmer fully automatic. This compact unit fits inside most skimmer wells and provides continuous skimming of the surface while maintaining fine tuned performance of any suction side cleaner. Fits Products* S-15VF. Certikin HD100; Filtrite SK950.910; Hayward SP1070; Jacuzzi PMP9411.9989; Kafko; Nally P1000; PoolRite; Quiptron; SwimQuip U3.