Abstract: A kit for use in treating a sink drain so that drain remains both open and clean includes an unclogging device and a strainer, which though packagable or stackable together would normally be used separately. The unclogging device can be used to concentrate the spray from a nozzle to assist in unclogging a drain. The strainer would normally reside in a sink drain to prevent debris from clogging or restricting the drain. One version of the strainer provides space for an air freshener that can be replaced. These kits also include a sealing stopper and a gasket.