Ideal for dryer venting; 4 in. diameter aluminum semi-rigid duct; Snap-Lock(TM) fittings on each end--1 collar crimped (male), 1 collar slotted (female); Maximum velocity: 5,000 FPM; Operating temperature range: -100deg F to +430deg F; Bulk package;
Length: 21.50"
Width: 4.25"
Height: 4.25"
