Product Information Material: 304 Stainless Steel Select a Product Part NumberTube OD 13MHHM100-150SN1"- 1-1/2" 13MHHM500SN5" 13MHHM50-75SN1/2"- 3/4" 13MHHM400SN4" 13MHHM800SN8" 13MHHM300SN3" 13MHHM250SN2-1/2" 13MHHM200SN2" 13MHHM600SN6"