HYDROMAXX 1-1/4 in. x 50 ft. White PVC Schedule 40 Flexible Pipe 2201114050 - The Home Depot
Amazon.com: Ququyi PVC 1-1/4" ID x 1-5/8" OD Braided Clear Flexible PVC Tubing Soft for Four Seasons Vinky Tube, Reinforced Vinyl Hose for Water Discharge& Oil Transfer, 6.56ft : Industrial & Scientific
Expandable Flexible Universal Kitchen Sink Sewer Drain Pipe Tube S Trap, Bathroom Vanity Sink Drain Plumbing P Trap Tubing 1- Opening - Temu Belgium