Flex-O-Vent specially formulated polyester venting material, designed to be installed underthe ridgecap. Flex-O-Vent prevents moister absorption into the attic as well as it helps tokeep out debris and pests while providing cooling airflow. It does not absorb moisturewhich can freeze and block off all ventilation. Easy one-person installation
Size: ¼” to 5 ¾”Material: Aluminum w/ EPDMItem Dimensions (LxWxH): 15.2 x 20.3 x 3.8 CM
Product description: Screw diameter: O 4.8 mm Screw length: 35 mm Screw material : Carbon steel, galvanized Head: hexagonal Buffer material: carbon steel, galvanized Fixable element: 7 mm Tightening torque: 3 Nm Recommended speed: 1800 rpm Zinc layer thickness: 12 µm Dura.zinc Paint layer thickness: 50 µm Base material: plate, trapezoidal plate Quantity in package: 250 pcs.