National Ventilation 136-24 Adjustable Air Valve White 100 Mm / 4 Inch 5014662000921

National Ventilation

. . . . . \n\nAdjustable Air Valve.\n\nAdjustable centre ring.\n\nUsed for passive ventilation or with in-line fans. For internal use only. \nOverall external diameter below fitted surface: 147mm. Duct connection diameter: 100mm.\nVAT INVOICE ON REQUESTCollection is also availableMonday - Thursday: 7.30am to 4.30pmFriday : 7.30am - 3pm