Round Duct Collar Mount 98 mm Plastic Duct Sleeve with Square Mounting Base, 2 Pack for Exhaust Routing, Fan Outlet Mounting, and Repairs Multicolor

Features: Direct Vent Connection: This round flange connector joins a fan outlet to a duct run through a square mounting plate and collar layout, helping guide airflow into a cleaner exhaust or cooling route. Screw Mount Structure: The square base includes corner mounting holes for fixed installation, giving you a straightforward way to attach the connector to a wall panel, fan housing, or vent opening. Reference Size Guide: ERP specifications list a 9.8cm/3.86inch collar diameter, 10.5cm/4.13inch hole spacing, 7.0cm/2.76inch height, and 12.0cm/4.72inch square base for setup comparison. Built For Airflow Projects: Use this molded flange in ventilation, exhaust, dryer, or cooling layouts when you need a round duct connector that helps organize fan output and wall routing. Two Piece Supply: The package includes two matching connectors, giving you spare stock for replacement work or paired installs while keeping the same vent layout across both mounting points. Specifications: Materials: Plastics Size: Diameter Approx.9.80cm/3.86inch; Hole Spacing Approx.10.50cm/4.13inch; Total Length Approx.7.00cm/2.76inch Quantity: 2Pcs Package Includes: 2Pcs Round Duct Flange note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.