In plumbing, a sink strainer is a type of perforated metal sieve or mesh strainer used to strain or filter out solid debris in the water system. Such strainer Elements are generally made from stainless steel for corrosion resistance.In plumbing, a sink strainer is a type of perforated metal sieve or mesh strainer used to strain or filter out solid debris in the water system. Such strainer Elements are generally made from stainless steel for corrosion resistance.In plumbing, a sink strainer is a type of perforated metal sieve or mesh strainer used to strain or filter out solid debris in the water system. Such strainer Elementsare generally made from stainless steel for corrosion resistance.In plumbing, a sink strainer is a type of perforated metal sieve or mesh strainer used to strain or filter out solid debris in the water system. Such strainer Elements are generally made from stainless steel for corrosion resistance.In plumbing, a sink strainer is a type of perforated metal sieve or mesh strainer used to strain or filter out solid debris in the water system. Such strainer Elements are generally made from stainless steel for corrosion resistance.In plumbing, a sink strainer is a type of perforated metal sieve or mesh strainer used to strain or filter out solid debris in the water system. Such strainer Elements are generally made from stainless steel for corrosion resistance.In plumbing, a sink strainer is a type of perforated metal sieve or mesh strainer used to strain or filter out solid debris in the water system. Such strainer Elements are generally made from stainless steel for corrosion resistance.