PKC Premium Quality Flexible Aluminium Pipe which can be extended up to 10 Feet of Length.This Is an aluminium flexible pipe specially used For Kitchen Hoods/Electric Chimney.* PLEASE CHECK COMPATIBILITY OF PRODUCT BEFORE ORDERING SUITABLE ONLY FOR. 4 Inch Chimney Size Material : Aluminium, Colour : Silver, Diameter : 4 Inch, Length : Expended up to 10 Feet