September 18, 2017
Have a Pella slidind door needs roler.Installed in the 80',Which Rollers do I need.
September 19, 2017
There's flange and no flange, and they are seperable by date.
81-098 fits doors made by the Pella Company from 1959 to 1996.
81-244 fits doors made by the Pella Company from somewhere around 1996 to present. The flange adds 3/16" to the height of the sides. It would appear that newer ones are mortised deeper into the frame. I don't know this for sure. A customer on your site made it sound like only the flange needed to be mortised to fit deeper not the entire hole for the roller.
According to one reviewer:
"My original rollers had the flange. The new rollers do not, but fit the door perfectly. "