• 3/8" Inner Diameter by 20 ft long
• No weights required! Weighted airline remains on the bottom even when filled with air.
• Flexible, durable and safer. It is guaranteed not to kink, highly puncture resistant and is lead free.
• Made from quality, cast stone with stained finish (not paint). 
• Smooth walls inside and outside 
• Please Note: When runs are greater than 300 feet, larger 5/8" airline is required.