They will fit and work in your Roomba. They look about the same. I have to say that the quality and durability are not the same. I was able to use the extractors that came with the machine for a very long time and still have them because they didn't look damaged. This particular brand I bought that had the end of the gray extractor chewed up or the ends falling apart after only about 2 weeks of use. This is of course disappointing. From now on I will probably only buy extractors and other parts from IRobot.