As already mentioned, the bags are mostly suitable. They are not a perfect rectangle to fit in the vacuum's bag compartment. Like I said, I LOVE these bags. They are so cheap that I can change them very often and with two constantly shedding dogs in the house this is very important. I will continue to order these bags. My house is cleaner than ever because I don't have to choke on the prospect of paying $4 for a manufacturer's bag. Love!