Designed for domestic applications, including driveways and paved areas such as garden patios, this 1m long A15 DekDrain Slot Drain Metal Edge will create a neat and contemporary look with a square-faced, polished aluminium finish. The drain is designed with an elliptical shape making it a dry weather channel. This shape also ensures excellent water flow, which helps to self-cleanse the system and reduce the need for you to regularly Also suitable as a threshold drain, you can use DekDrain Edge to complete the connection between hard landscaping and your property. Its 82mm upstand helps to ensure easy laying as it provides paving with enough space for a securing bed of mortar without the need for you to trim the edge off the pavers.clean and remove blockages.