EVVA MCS Euro Profile Double Cylinder EVVA's double profile cylinder has a locking cylinder on each side that is key operated. EVVA has an optional external override mode that allows the external keys to always open the lock even if the key is left in the inside. Euro Cylinder EVVA euro profile cylinders are replacement cylinders that fit European locking devices that take profile cylinders. They are also used in some sliding glass doors and devices in North America. We stock virtually of the unique sizes and combination of sizes for these cylinders from 30mm to 60mm. If you need a size we do not carry please contact us for details. Euro profile cylinders fit many different applications and are designed to meet the Din Standard 18251 for sizing. The only size that generally varies on a euro profile cylinder is the exterior / interior (on non half-euro cylinders) length. Note that when measuring, cylinders are generally a few mm longer than the stated length. A 30mm euro profile cylinder is frequently between 31-33mm long. If you had a double cylinder that measured 75mm long and was equal on both sides this would actually be a 35/35mm cylinder. If you are not sure about your length or have questions please let us know. Dust Cover For extremely harsh conditions (lots of sand,salt,dirt,etc) EVVA offers an optional heavy duty dust protector to the front of their locks. Note for 99.9% of all applications this is completely unnecessary. EVVA locks are out of the box extremely weather resistant featuring a very low chance of any material actually causing interference in the lock. If you are however in extreme conditions for extended periods of time EVVA offers the dust protector for added protection. EVVA EVVA is one of the top high security manufacturers in the world with several different active high security systems and is based out of Austria. We carry their premium MCS (Magnetic Code System) product line featuring a nearly un-duplicable key and an extremely sec