Check the listing for details. Pool Skimmer Skim Vac Plate Adapter with 90 Degree Elbow for Above-Ground Pool. Condition: New. Listed at 12.80 USD. Pool Skimmer Skim Vacuum Adapter Plate with 90 Degree Elbow Replace Swimline HydroTools Vacuum Adapter Plate w/Elbow 8929 Product Features: Fit Swimline Hydrotools 8939, 8939G, 8939A, 8939AG, 8940, 8940G, and 89401 Thru Wall skimmers along many other above ground pool skimmersVacuum elbow accommodates 1-1/2" and 1-1/4" pool vacuum hosesAdapter Plate Diameter: 6-7/8"***Note***: Make sure to measure your existing skimmer lid/cover size to guarantee a proper fit before you purchase the itemWill not work with Doughboy, Lomart, or Muskin skimmersPool Skimmer Skim Vacuum Adapter Plate with 90 Degree Elbow Replace Swimline HydroTools Vacuum Adapter Plate w/Elbow 8929 Product Features: Fit Swimline Hydrotools 8939, 8939G, 8939A, 8939AG, 8940, 8940G, and 89401 Thru Wall skimmers along many other above ground pool skimmersVacuum elbow accommodates 1-1/2" and 1-1/4" pool vacuum hosesAdapter Plate Diameter: 6-7/8"***Note***: Make sure to measure your existing skimmer lid/cover size to guarantee a proper fit before you purchase the itemWill not work with Doughboy, Lomart, or Muskin skimmers