Kaff Steel Cowl Pipe Vent Cover for Chimney Pipe - Size-6" to avoid birds from entering the chimney pipe. Ideal for all tumble dryer vent pipes / hoses, bathroom vents & extractors, air conditioning units, kitchen fans & vents, all home wall vents, heat transfer and ventilation systems, gas & electric dryers, cooker hood extractors, as well as a wide variety of industrial uses. Kaff mainly produce ventilation products such as mixed flow inline duct fan,silent exhaust fan,square duct fan,EC mixed flow inline duct fan,AC cooling fan, DC cooling fan and ventilation accessories.Compatible 6 inch diameter ducts. Made of 304 stainless steel, can prevent unwanted leaks and drafts.Built in fly screen mesh: it helps to prevent pests from entering your home Very easy to install and use, please wear gloves when installing! Design of 155mm hemispherical hood,windproof and rainproof. Kaff 6 inch wall vent's opening diameter is 150mm(6 inch), Brand new stainless steel bull nose wall vent with anti insect grill, louvres, This stylish steel wall extractor vent outlet has a fine mesh to keep pests out and a weather seal to prevent unwanted leaks and drafts. Ideal for all tumble dryer vent pipes / hoses, bathroom vents & extractors, air conditioning units, kitchen fans & vents, all home wall vents, heat transfer and ventilation systems, gas & electric dryers, cooker hood extractors, as well as a wide variety of industrial uses. Specifications: Circular pipe / hose fitting diameter 150mm (6")