NDS Flo-Well FWFF67 Non-Woven Filter Wrap, Fabric, Black, For: FWAS24 Flo-Well Storm Water Leaching SystemFlo Well manufactured dry well presents an easy to install and sustainable solution for storm water runoff. Used independently or as part of a larger storm water management system, Flo Well units collect, retain and discharge storm water on site, offering a gravel free alternative to a traditional dry well. Units are modular and can be connected in series or stacked to meet a variety of project needs. Manufactured from 100% recycled materials. Unit: