rollers are 1 1/8 in diameter housing 3 1/8 x 1 1/8
A quick learner from Manchester Jamaica says:
November 10, 2021
Patio doors tandem rollers required
Tom from SWISCO responded:
November 15, 2021
Hello! Your roller looks like a dead ringer for our 81-154. Don't take my word for it, though. I recommend reviewing our specs just to be sure they all line up.