Aluminium air vent grills to prevent rodents and birds from gaining access to buildings through air bricks and other large holes. The gnaw-proof design is a superior control method compared to plastic alternatives. Available in 3 sizes (w)245mm x (h)90mm | (w)245mm x (h)170mm | (w)245mm x (h)245mm. Roshield Air Vent Proofing Grill Designed to be used in the toughest of rodent infestations and where 100% proofing of air vents are required to...