https://www.fabcoplastics.com/product-page/chemline-single-wall-systems/
ChemLine Single Wall Systems - Fabco Plastics
single wall systemsfabcoplastics
https://www.acehardware.com/departments/plumbing/pipe/corrugated-and-drain-pipe/45563
Advanced Drainage Systems 3 in. D X 100 ft. L Polyethylene Slotted Single Wall Perforated Drain...
ADS single wall corrugated HDPE pipe is ideal for drainage projects where flexibility, light weight and low cost are important. For subsurface water collection...