The ITD 20mm to 15mm In-Line Strainer is like a mini filter for your plumbing system. It's made to fit into water pipes, catching tiny bits of dirt and gunk so they don't clog up your faucets or appliances. The cool thing is, it has a clear part so you can see if it needs cleaning without taking it apart. It's super easy to put in, and it works in all kinds of places like homes, gardens, or even in bigger buildings. Plus, it helps save money by stopping problems before they start!