【UNIVERSAL DUAL-SIZE COMPATIBILITY】 Effortlessly connects to both 90mm (about 3.5") and 110mm (about 4.3") ducting systems. This versatile arm is a plug-and-play replacement for most fume hoods and extractors, eliminating the hassle of finding specific adapters
【PRECISION & FLEXIBLE POSITIONING】 Features a 3-section arm with 360° swivel joints. Easily maneuver the hood mouth to any desired position, ensuring harmful fumes, smoke, or dust are captured right at the source for a healthier workspace.