A handy person from Spring Valley, California says:
October 12, 2015
I'm having trouble finding a proper set of rollers to fix my door. All I know about the manufacture of the door is a marking on the door handle W_M The door was installed around 1986 Please help, thanks John
Paul from SWISCO responded:
October 13, 2015
Thanks for posting, John. Please see our 81-254, I think this could be a good match for you. Just double check your measurements.