The Quatro ASV (Auto-Start Valve) Arm serves two purposes; allows more suction to the active workstations or benches by diverting air from the idle ones and also serves as a remote on/off switch.  Compatible with any Quatro iSeries Dust Collector with 3” hose connection, the arm extends to a total of 24" (61.0cm) long and will hold its weight securely when positioned. Connect to a 3" (7.6cm) diameter hose. For other hose diameters, an adapter set (8543041) is required.  Arm is mounted on a table-stand support bracket (3.6"H x 7.3"W x 2.5"L) (9 x 19 x 6cm) and includes an 8" (20.3cm) diameter plexi-nozzle and oval tapered nozzle. Supplied with 20' (25.4cm) long connection cable. Shipping weight 2 lbs. (1kg). Made in Canada.