hi mate the bottle is getting sold with the reg of your choice either with a 3000 pmi on or with a 4500 crossfire on. i had a preveus bottle that failed so kept the regs my team mate got me a spare bottle to go with the regs to which i was going to get tested at a cost of £20 but unfortunally got car issues so need funds thats why selling at £65 allin you get tested yourself still getting a bargin as they sell on forum around £95-£100 just a tip most sites or tornies only fill upto 3000 pressure psi due to the new air laws if that helps andy pics of 2 air regs on forum only