Enviroscape uses the best available Dripline on the market which is made by the biggest irrigation manufacturer in the world….Rainbird. 
Their XFS Subsurface Dripline With Copper Shield™ Technology dripline is the latest innovation in the Rain Bird Xerigation® Family. Rain Bird’s patent-pending Copper Shield Technology protects the emitter from root intrusion, creating a long-lasting, low maintenance sub-surface drip irrigation system for use under turf grass or shrub and groundcover areas. XFS Dripline with Copper Shield is perfect for small, narrow and tight planting areas, as well as areas with tight curves or many switchbacks. It accepts Rain Bird Easy Fit Compression Fittings, XF Dripline Barbed Insert Fittings and other 17 mm barbed insert fittings.