... Mesh ISO9001:2000 Certification Aperture:1/4",3/8",1/2",5/8",3/4",1",2"etc... Material: 304 Stainless ... DiameterIn inchIn metric unit(mm)1/4" x 1/4"6.4mm x 6.4mm22,23,243 ... x 12.7mm16,17,18,19,20,211-1/2" x 1-1/2"38mm x 38mm14,15,16,17, ... "75mm x 756mm2.67mm,2.41mm,2.11mm,1.83mm,1.65mm2" x 4"50mm x 100mm2.11mm,2 ... OpeningWire DiameterIn inchIn metric unit(mm)1/2" x 1/2"12.7mm x 12.7mm16,17,18 ...