A kitchen sink strainer is a device that fits over the drain hole in a kitchen sink to prevent food and other debris from entering the drainpipe. It is typically made of metal or plastic and has a mesh or perforated screen that allows water to pass through while catching solids.
Kitchen sink strainers are important because they help to keep drains from clogging. Clogs can lead to slow drainage, standing water, and even sewage backups. Strainers also help to prevent food and other debris from entering the septic system, which can damage the system and lead to costly repairs.