Numatic NVDQ900 Head Only Packed 240v or 110vGenuine Numatic Head Only NVDQ900 240v or 110v This Genuine Head Only is compatible with the below models . This complete vacuum head is fitted with 2 genuine Numatic motors for a double motor suction in 240v or 110v. 240v 598916 110v 598054 If you're unsure if your machine is compatible with the base of your machine please contact us on the bottom right with your Numatic 9 digit serial number & Vacuum Model , we will then advise the right product