EZ-Fluid 15-Inch Braided Flexible Stainless Steel Water Heater Connector Hose For Female Iron Water Pipes Fitting, 3/4-Inch FIP x 3/4-Inch FIP - Amazon.com
Amerimax Home Products FLEX Drain 4 in. Black Copolymer Universal Drain Pipe Connector ADP53302 - The Home Depot