Hi John, I recommend taking a piece to a local tubing and hose company. They will only charge you cents per foot instead of mega bucks plus shipping from a medical supply. Paula Pierce, HTL(ASCP)HT Excalibur Pathology, Inc. 630 N. Broadway Moore, OK 73160 405-759-3953 contact <@t> excaliburpathology.com www.excaliburpathology.com