Hayward SP1107 Skim Vac In-Ground Pool Skimmer Skimmer vacuum plate with 1-1/2-inch straight adapter Fits Hayward swimming pool skimmer SP1082, 1084, 1085, 1075 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 7-1/4-inch diameter