Review on Aluminum Sash Window Pet Door by IDEAL PET PRODUCTS - Adjustable 33" to 38" Width, Chubby Kat Size (7.5" x 10.5" Flap), White - Model: 33SWDCK, Since 1990 by Angel Peterson

** We bought Chubbykat size. This door is very easy to install and looks beautiful on the window. However, he has his own problems. Pros - easy installation, beautiful appearance, fine finish (mostly). Cons - I don't like the plastic lid. We bought the Chubbykat version, hard plastic lid. We had a hard time training our little dog with him because when he tried to pull back the plastic door caught him and the pain returned causing him to fear it. Since then we have had to remove the valve and replace it with a home made flexible valve. It would be great if they offered a flexible sash with a rosette that folds shut for smaller doors. Also, the tiny screws used to attach the grand piano case are very cheap and easily strip the metal they are drilled into. When we received the door one screw had already been removed and was missing. We had to replace them too.