Please note that these are trade packs which means they don't come in retail packing, but are packaged up here by hand. If you wish to confirm authenticity then please contact the manufacturer of the aladdin http://www.nlbengineering.co.uk who will be able to confirm.
These are genuine Aladdin valves manufacturered by NLB Engineering, please be aware that not all HV30's being sold on EBay are the genuine article.