The 1/4" foot that I bought is a generic foot and it works just fine with my machine. If you look online there are a number of sewing/vacuum dealers and other retailers that sell these feet. If you email or call them you can find out if they will work on your machine. Here is one that Patrice posted and I bought and love it too! I finally can get a accurate 1/4" AND a scant 1/4" too.
http://www.quiltingboard.com/posts/list/6008.page