The Thru-Wall 12 inch skimmer in grey for above ground pools comes complete with gaskets, weir (flapper) door, skim/vacuum attachment, return fitting and directional eyeball. This skimmer fits all filtration systems including Hayward, Jacuzzi, Aqua Leader, Trevi, Cornelius, Pacfab, Waterway, etc. Skimmer features a 12 inch (30 cm) punch width.