Tofficu Duct Connector Air Backflow Damper Flexible Vent Blocker for Hvac Systems Easy Install Non Return Valve for Air Conditioning Exhaust Fans Smooth Surface Design UNOYX just put it on a

just put it on a desk or a bookshelf

Brand: FLYVOLE

Simple Installation: Includes #8

Size: 14" adjustable leveling galvanized screw jack

1 Inside Elbow

Tofficu Duct Connector Air Backflow Damper Flexible Vent Blocker for Hvac Systems Easy Install Non Return Valve for Air Conditioning Exhaust Fans Smooth Surface Design UNOYX just put it on aBrand: Tofficu Color: White Features: Duct connector flange: easy to use, the duct connector is simple to operate, suitable for personal or professional use,duct damper Duct connector: smooth surface without burrs, the tube connector is simple to install and will not hurt your hands,connecting duct fittings Air vent duct connector flange: using abs material and fine craftsmanship, strong and durable long serving life,duct coupler Air duct vent: