DUST COLLECTOR DUCTING (BRIDGEHOSE), 20" DIA x 25' LENGTH, BLACK 13 OZ FABRIC, 10 GAUGE WIRE, 1.5" PITCH W/ BLACK WEARSTRIP AND PLAIN ENDS, 25 FOOT SECTIONEXTRA HEAVY DUTY 13 OZ FABRIC AND 10 GAUGE WIRE - THIS IS THE GOOD STUFF! APPLICATIONS:...