160mm Air Damper Valve Electric Motorized Check Valve for 6 Inch

1.This damper is suitable for controlling the air volume from full flow to shut off2.The damper is constructed with plastic and come with plastic pipe.3.It can work with thermostat, open and close automatically.Colour:White+redMaterial:plasticSize:160 x 170 x 140mmPackage Contents:2 x Check valveOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.