Traditional Cylinders UNION offers a variety of traditional cylinders to meet the demands of every application. Cylinders are available in four different variations. If the length you require is not listed please refer to the UNION Cylinder Pricing Guidance document on the UNION website. Download Introduction - Traditional (.pdf, 2.2 MB) 1X1 - Rim Cylinder 1X1OF - Rim Cylinder (Old Style) 2X1 / 2X8 - Oval Profile Single Cylinder 2X6 - Oval Profile Double Cylinder 2X11 - Mortice Screw-in Cylinder 2X18 - Euro Profile Double Cylinder 2X20 - Euro Profile Single Cylinder 2X51 - Oval Profile Key & Turn Cylinder - Hotel Function 2X19 / 2X48 / 2X44 / 2X28 / 2X71 - Euro Profile Key & Turn