Everest Kanto Cylinder Limited manufactures Purge Bottles or Double Necked Cylinders. Everest Kanto Cylinder Limited is an ISO 9001:2000 awarded company. The Purge Bottles or Double Necked Cylinders have threaded necks at both the ends. These machines find application for purging as well as high pressure condensate water traps in compressed air lines and on-board marine vessels.