... high corrision resistance anti-aging easy to install low price and high quality Specification:1.Holland wire mesh2,wire diameter ... coated3.Characteristic:high corrision resistance ,anti-aging ,artistic and practical,easy and quick to install filtering precision,high load intensity, ... 6mm19,20,21,221/2" x 1/2"12.7mm x 12.7mm16,17,18,19,20,21,22,235 ... 19,20,211" x 1/2"25.4mm x 12.7mm16,17,18,19,20,211-1/2" x ...