Hayward SP11051 Skim Vac Above-Ground Pool Skimmer Skimmer vacuum plate with 1-1/2-inch hose straight adapter Fits Hayward front access swimming pool skimmer SP1090, 1091, 1096, 1097 and 1098, top cover styles models By utilizing the skimmer basket instead of the pump strainer basket, the need to turn the pump on and off is eliminated Simply attach the appropriate Skim-Vac to the vacuum hose located over the skimmer basket and begin vacuuming Measures 6-inch diameter