Ventilation grille with curtain and cords 187 mm to opening 142 mm

Ventilation grille with curtain and cords 187 mm UNDER a square hole 142 mm. New in packaging. The advantage is the ability to close during the off-season when there is still no heating and during winds, saving from increased loss of warm air in the premises. It is located in Kairbaev street, corner of Bukhar-Zhyrau street. I am considering delivery.