Builder's Best 110129 4" x 6ft V830 Semi-Rigid Pipe
• 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;