Features: Upgrades your ventilation systems with our Reducer 150 to 100, designs for seamlessly connectors between different pipe size, ensuring efficient airflows and accessory with various setups. Crafted from plastic and metal, this exhaust hose Adapters features two tiers designs that enhances pressure resistance, making it addition for diverse piping connection. For professional plumbers, home enthusiasts, and anyone involved in pipe modifications, this Adapters is practical tool for all skill levels. Widely applicable in residential and industrial piping systems, it facilitates diameter reduction in ventilation pipes, adapting to various environment and installation needs. Equipped with two metal hose clamps, this round pipe ventilation hose ensures secure and stable connection, providing for any ventilation project. Specifications: Component: Plastic, Metal Color: White Size: 15.5x11.3cm/6.1x4.45inch Package Includes: 1pc Hose Adapters Set note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.