HI, LOOKING FOR 24 OF THESE SASH GUIDES. NEED 2 BALANCERS 2920, 1/2" WIDE.TAG ON TOP OF WINDOW SERIES 2114, DH-R30. DON,T KNOW IF THIS HELPS.WENT THRU THE PARTS PAGE AND NOTICED CHANGES SINCE LAST ON. IF MORE PICTURES OR MEASUREMENTS ARE NEEDED, LET ME KNOW. THANK YOU, GARY