The present invention is a circular screen panel for a vibratory screen separator including a plurality of pie shaped screen modules assembled together to form a circular screen panel. Each screen panel includes a module frame which includes two radial arms and a curved portion, the radial arms connected together at one end and connected to the curved portion at the other end. Each of the radial arms includes a horizontal and vertical position, the horizontal portion for receiving the screen thereon. The vertical portion includes a channel for receiving a portion of a gasket such that abutting surfaces of the vertical portion of the L shaped member of adjacent screen modules make contact in an assembled position.