Key benefits Durable ABS construction provides longlasting performance in ventilation ducting systems. Smooth interior design reduces air resistance for efficient exhaust flow and improved overall system performance. Flexible installation options allow wall mounting as either inlet or outlet to suit different ducting layouts. Precise size options fit common ducting needs: 100mm (4in), 125mm (5in), and 150mm (6in), with detailed dimensions to help you select the right size. Product details ABS Construction: Crafted from robust ABS material for lasting performance and resistance in ventilation applications. Smooth Airflow Design: The interior is exceptionally smooth, minimizing air resistance to ensure efficient exhaust flow and improved system performance for heating and cooling applications. Versatile Connection Use: Ideal for connecting pipe ends in ventilation systems and can be wallmounted as both inlet and outlet, offering flexible installation for different setup requirements. Precise Size Options: Available in three sizes — 100mm (4in), 125mm (5in), and 150mm (6in) — with detailed dimensions to help you select the right size for your ducting needs. Use scenarios Residential HVAC: Connects duct sections in home heating and cooling systems, serving as a reliable straight pipe flange connector in the network. Commercial or industrial ductwork: Used in office buildings or workshops to join duct runs and provide accessible inlet or outlet points when wall mounting is required. Retrofit projects: Fits existing ducting layouts where a robust, quality flange connection is needed to maintain airflow efficiency and system performance.