SMSKu-E-UV is a plastic push-in sleeve made of modified PVC, in grey (RAL 7035), non-flame-propagating, UV-stabilized. This push-in sleeve is used to connect the plastic straight pipe FPKu-ES-F-UV grey and for surface-mounted installations outdoors. The advantage is its UV stability. UV-stable for up to 10 years.0605 DIN EN 61386-21