510-1650T Skim Filter Assembly by Waterway is a skimmer and a filter, all in one. Front Access skimmer kit includes the EZ Flow Basket, Weir, Diverter Plate, Trim Plate and mounting Gasket. Can be plumbed 1-1/2 inch Socket or 2 inch Spigot from underneath. 16 inch tall Skim Filter 510-1650T also includes two stacked cartridge filters, 10 SF each, for a total of 20 sq ft of filter area. Waterway 510-1650 Measures 20"" tall overall, with square cartridge well area 5"" wide, and faceplate 7.4"" square, for mounting to spa, hot tub or pool wall.