Abstract: A drain stopper adapted for retrofit application to the drain assembly of an existing sink, tub or other water retaining basin. The drain stopper of the present invention comprises an elongate connecting rod having an end cap threadably engaged to one end thereof. Also cooperatively engaged to the connecting rod is a filter basket, one open end of which is enclosed by the threadable engagement of the end cap to the connecting rod. The selective detachment of the end cap from the connecting rod allows the interior of the filter basket to be filled with a suitable deodorizer. The filter basket may optionally be provided with a plurality of projections which are sized and configured to capture hair or other debris passing into a drain opening in which the drain stopper is positioned.