This listing is for a MDC Vacuum Stainless UHV Right Angle Flange 4.5"OD 2.25"ID Unit is used, hasn't been vacuum tested. Comes with a 100% money back guarantee. Please inspect images very carefully to be sure if this will work for your application / function. Please email with any questions! If there is anything wrong with the item that you have purchased, please contact us directly and give. us a chance to help, we respond quickly and will ensure you are satisfied with your purchase and experience! Please do not leave negative feedback or open any disputes with eBay or PayPal. Contact us directly and we will fix the problem quickly.Fast & free shipping We strive for 5/5 Star service! Fast & Free shipping!