The e-commerce portion of this site is set up to streamline part delivery to the customer. It is especially helpful when the direct supplier does not currently have inventory. It also makes it much easier on the customer when purchasing a rebuild kit as all the parts come in one package for you. This does come at a markup for the convenience due to the fact that Microcanner has to stock these items and handle them twice. To save cost, you can order direct by going to your user manual found on this website, scrolling down and selecting the link to select your desired product.