Greetings form Aura Industries! We look forward to hearing from you and look forward to your inquiries and comments. It is our pleasure to help provide you with all of your HPLC accessory needs. Please note that if you are interested in making a purchase, you are encouraged to contact Aura Industries via phone: 212-290-9190, fax: 212-290-9191, email: info@aura-inc.com or via this form. In addition to the information asked for in the form below, please be sure to also provide the following in the Comments section: Purchase Order Number Ship to and Bill to addresses Shipping preference Item numbers and descriptions