4 Inch Duct Connector Flange, 2 Pack ABS Square Air Ventilation with Duct Backdraft Valve for Heating Cooling Ventilation System, Black 14.7FT Other applications for steel bearing

Other applications for steel bearing balls include casters

OE Number: 8K0820521

Chrome plated finish for rust and corrosion resistance

Drill Bit Length: 155mm / 6

0L Cologne motor

4 Inch Duct Connector Flange, 2 Pack ABS Square Air Ventilation with Duct Backdraft Valve for Heating Cooling Ventilation System, Black 14.7FT Other applications for steel bearingThe duct connector flange is mainly used to connect the duct hose (not included) to an output port through a bolted connection. Widely used on the home, kitchen, bathroom, garage, and office. Suitable for this area which needs a ventilation system. Specification Color: Black Material: ABS Plastic Outer Diameter of Interface: 95 mm 3. 7 inch Overall Dimensions: 148 x 148 x 70 mm 5. 8 x 5. 8 x 2. 8 inch (L*W*H) Diagonal Mounting Hole Distance: 155 mm 6.