Algreen Heavy Duty Non Kink Tubing for Ponds/Rain Barrels and More, 1.5-Inch Diameter by 25-Feet 1.5 Inch ID (Internal Diameter) by 25 Feet Long Heavily Corrugated for Extra Strength and Durability; UV Protection Against Sun Rays Extra Long 25 Foot Length provides Ulimate Versatility Perfect for Connection to Ponds/ Pumps/ and Algreen Rain Barrel Overflows 1.5 inch id (internal diameter) by 25 feet long Heavily corrugated for extra strength and durability; uv protection against sun rays Extra long 25 foot length provides ulimate versatility Perfect for connection to ponds/pumps/and algreen rain barrel overflows