Description
D 1820 is a Plain Back patio door roller assembly with a 1-1/4 inch concave or grooved steel ball bearing roller. It has a plain back housing that is 19/32 inches wide with a 23/32 inch flare and 1-3/16 inches tall. It is rear adjusting with a 3/16 inch diameter mounting hole on the back end. It is used by several manufacturers of patio doors.
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