duct door pipe window pipe door 1,Material:PS 2,Color:white,yellow etc 3, ... price and high quantity 4,ISO-9001-2008 duct door pipe window pipe door1,Plastic "easy-access"panel with clip-in door2 ... painting or wallpapering6,Mouldproof7,Rustproof8,easy to install using caulking,adhesive,nails or screws.9,Good lock designInstruction