Filter Niche with 2 cup lid

Waterway top load filter niche and lid with screws. Lid has indents for 2 cups Part details: Waterway niche and lid with screws Lid outside diameter 10" Niche outside lid diameter 9-3/4" Niche bottom diameter 8-3/4" Genuine Waterway plastics part OEM part number 500-1021 Also fits as a replacement for the following:519-2031519-1040 When purchasing replacement parts for the top loading filter in your hot tub always confirm replacement part compatibility to ensure proper fit.