Rubber-Cal 6 in. I.D. x 25 in. HVAC Ventilation-Flexible Duct

When buying the HVAC ventilation flex, you get a ducting hose which is made from a combination of materials, expanding its capabilities to give you a supremely versatile duct. It comes in a standard 25 ft. length and inner diameter measurements of 4, 6, 8, 10 and 12, and is dual-layered. Gray PVC makes up the outer layer of the hose, while the inside is covered with aluminum. The body is also reinforced with a sturdy wire helix for added strength, as well as a layer of pet film. Its multi-layered PVC and aluminum body gives the hose a quality range of functionality. Aluminum is known for its heat resistance, and the layer within this duct helps to give it an excellent working temperature ranging from -20°F to 160°F. The ventilation flex also lives up to its name by displaying extreme flexibility. This adds to its versatility, allowing it to be bent and twisted as required. It also has outstanding compressibility, able to squeeze down to a fraction of its stretched size, making it easy to store and transpor...