HYDROMAXX 4 in. x 25 ft. Black PVC Schedule 40 Flexible Pipe 2202400025 - The Home Depot
Gray PVC rigid pipe free of halogens of 25 mm sleeve
Amazon.com : Sealproof Flexible PVC Pipe 1-1/2 Inch Dia Hose 25 FT Length, Black Tubing, Schedule 40, Premium Quality Made in USA : Tools & Home Improvement
HydroMaxx 1-1/4-in x 25-ft Schedule 40 PVC Pipe in the PVC Pipe & Fittings department at Lowes.com