An HDPE duct coupler is a specialized fitting used to connect two HDPE pipes or ducts, ensuring a secure and leak-proof joint. These couplers are designed to offer both mechanical strength and flexibility, making them ideal for use in systems that need to withstand vibration, pressure, and environmental stress. HDPE duct coupler fittings are often used in underground and outdoor applications, where they must perform under challenging conditions, including exposure to UV rays, temperature fluctuations, and water.