Select a Product Part NumberMaterialTube OD 13MHHM-Q400304 Stainless Steel4" 13MHHM-Q200304 Stainless Steel2" 13MHHM-Q300304 Stainless Steel3" 13MHHV-Q400304 Stainless Steel, Schedule 54" 13MHHM-Q250304 Stainless Steel2-1/2" 13MHHM-Q75304 Stainless Steel1/2"- 3/4" 13MHHM-Q100150304 Stainless Steel1"- 1-1/2"