Hoffman CCSS48TLB50, L-Shaped Tubing, 500X500Mm, 19.69 X 19.69InL-Shaped Tubing has an outer diameter of 48.3 mm (1.90 in.) and is made from 3.6-mm-thick Type 304 polished stainless steel. It is used with coupling sleeves and straight tubing to provide the desired system configuration.