These are for a "Great Lakes" premier patio screen. There are 2 roller units on top and 2 on the bottom. There is a screw adjustment for the amount of pressure applied. They mount with a screw at each end of the roller assembly. The Great Lakes company recommended your company. I would appreciate any help you can offer.
Thanks
Larry
Tom from SWISCO responded:
June 23, 2017
Hello, Larry. Thank you for your submission! Could our 84-074N screen door roller be a possible replacement part for you? Take a look and see what you think.