Prime-Line B 641 Sliding Screen Door Spring-Loaded Roller Assembly, 1 In. Diameter High Density Polyethylene Roller (Single Pack), Mill

Used by Weathershield doors and a variety of sliding screen door manufacturers, Spring-loaded arm with roller attached with an adjustable aluminum housing, 1 inch diameter concave (grooved) nylon roller, Body and tension spring of the roller assembly is aluminum with a high density polyethylene roller, Please refer to the line art drawing and compare with your needs item before purchasing (Not Universal)