Optimum Pools 77501 16' Skimmer Panel with 73-7/16" Skim & Return for IG poolThe 16ft skimmer panel is compatiable with the following pool sizes: 16' round, 16'x24' oval, 16'x28' oval, 16'x32' oval, 19'x32' freeform. This skimmer panel can replace a standard 16ft wall panel to add an additional skimmer and return to the pool. This 16ft skimmer panel can replace a 16ft above ground skimmer panel. Specific SP1084 adaptor plates (#77518 & #77519) are required to mount an SP1084 skimmer to the in-ground skimmer panel. Specific (#77168) return fitting kit required for return fitting assembly.