You are looking at a pair of Rubber Grommets to seal around the heater core tubes to suit; HJ ADR27A HX HZ WB AC and NON AC Both grommets same size = 16mm id approx Thanks for looking and don't forget to check out all of our Restoration Essentials in our store. All postal deliveries are with Aust Post eParcel with a unique Tracking number. Your parcel's tracking number will be sent to you via email on dispatch so you can keep an eye on your delivery.