Product: calimaero TVSA 4 Inch Round Adjustable Steel Ventilation Inline Air Duct Vent Cover Grille Exhaust White RAL 9016 HVAC
Brand: Klimapartner
Color: RAL 9016
Product details 
  Connection diameter (NW): 4 Inch Outside diameter: 5.5 Inch Material: steel Surface: lacquered  Colour: White (RAL 9016) Manufacturer: calimaero 
The easy installable 4” steel valve in white (RAL9016) with mounting frame has an adjustable, centrically arranged, rotatable font plate with which you can vary the outflow of air.
The ventilation valve is designed for removing air in residential buildings, offices, kitchen, bathrooms or other air conditioning systems and can be installed on ceilings and walls
By rotating the middle disk, the gap will expand and retract to meet your ventilation needs
Carefully packed in individual cardboard boxes to prevent damage during storage and shipment
The outside diameter of the grille is 5.5 inches

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