Extended length: You can directly connect two permeable pipes to increase the length or you can use PVC pipes to connect (PVC pipes are not included). Since its function is penetration there is no need to worry about leakage. Material: The outer layer of the flexible drain pipe is made of non-woven filter layer and polyester fiber ensuring effective filtration to prevent sediment from entering the pipe. It is more permeable and can achieve all-round penetration. The built-in steel wire ensures that the pipe is strong enough to cover soil or gravel. Easy to lay: Flexible easy to stretch bend and bend by yourself to meet your exact specifications. Multiple applications: This outdoor penetration French drain is suitable for a variety of scenarios such as courtyards backyards lawns gardens fences landscapes terraces construction sites sidewalks commercial areas industrial areas etc. Function: The flexible drain pipe integrates the functions of water absorption water permeability and drainage. It allows rainwater to penetrate into the surrounding soil and store it. In seasons with low rainfall it can store rainwater in the soil, Manufacturer: Kanduo