Check the listing for details. 5 PC Normally Closed Back check Valve. Color: CLEAR/BLUE, Condition: New with box. Listed at 5.99 USD. 5 PC Normally Closed Backcheck valve (415062)FOR TRAINING PURPOSES QTY 5 PC Normally Closed Backcheck valve Normally Closed Backcheck valve (REF 415062)EXP 2022-07 PLEASE NO RETURNSEXPIRED FOR TRAINING PURPOSES Expired for Training Purposes , When the item is expired must be used for educational, training, veterinary or non-clinical research purposes only. PLEASE SEE THE PICTURE PART OF THE DESCRIPTION "The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item."