Breathe Easy with Flexibility! 🌬️ Includes 2 stainless steel clamps for hassle-free setup. Cut to your desired length with ease. 4-layer design for maximum leak resistance. Operates effectively between -22℉ and 80℉. Perfect for HVAC, dryers, and grow tents. 3" diameter 16.5' length 4-layer protection The APACALI 3-Inch Flexible Ducting Hose is a robust 16.5-foot solution crafted from aluminum and PVC thermoplastic, designed for versatile ventilation applications. With a durable 4-layer construction, it ensures leak resistance and is easy to customize for any installation, making it ideal for HVAC systems, dryers, and hydroponic grow rooms.