pella patio door rollers needed

Pella glass doors use a few different possible rollers, such as the 81-098 or the 81-244 (we also carry a roller with the same dimensions as the 81-244 which, while not a Pella product, fits exactly the same way as the 81-244--see our 81-249). To know exactly what you'd need though, we'd need to see the original rollers out of the door, along with dimensions. That would help us narrow things down. Many thanks.