Prime-Line B 575 Center Grooved Roller Assembly, Top/Bottom Mounting, 1 in Dia Roller, 1/4 in W Roller, Concave Roller

This sliding screen door roller assembly insert has a high density polyethylene frame with an adjustable high density polyethylene inner housing and high density polyethylene roller. The assembly inserts into the bottom or top of the sliding screen door by snapping it into place. The roller housing adjusts to the correct position needed. This style is found on Columbia sliding screen doors but is also used by very many other screen door manufacturers.