Aquascape kink-free pipe is ideal for recirculating water in ponds, waterfalls, filters, & other water features without the use of PVC cement. The internal spiral prevents crushing while the smooth inner wall reduces friction & maximizes water flow. Aquascape kink-free pipe is made in the USA & provides durability & flexibility, making installations quick & easy in a wide variety of applications. Kink-free pipe works best when used with traditional barbed fittings & stainless steel hose clamps to form water-tight seals. Aquascape makes it easy to determine pipe diameter size by using the color coding on the internal spiral on the inside of the pipe, making it easy to find the proper fittings for any installation. Aquascape is passionate about water features, providing unique products, designs, & features that stand above the competition.