The page protectors that are compatible with this album are:
Universal 12 x 12 Page Protectors
I ordered several styles of the Becky Higgins 12 x 12 D ring photo albums and am very pleased with them. They are sturdy and can hold a lot of photo pages (I may have overloaded one and it handled it like a champ). The outside covers are sturdy and resist damage. I'm very satisfied with my purchase, especially since the price is terrific.
The whole Project Life Becky Higgins/Heidi Swapp line is full of cute, quality products. I love the D-Ring format -- it's so easy to add to/edit and I won't use any other type of scrapbook because I adore the styles and quality so much.