Arrow DCN500DP1 Parallel Arm Drop Plate for DCN500 Series

Arrow DCN500A1 Hold Open Arm for DCN500 Series

Arrow DCN500A Non-Hold Open Arm for DCN500 Series

Sargent 1431D Door Closer Parallel Arm Drop Plate

LCN 4050A-18PA Drop Plate, Parallel Arm Mount with Narrow Top Rail

Dormakaba DP89 Drop Plate for Parallel Arm, Top Rail is Less than 5-3/4"

Norton 410RDP Drop Plate, Narrow Frame, (Regular Arm), For 410 Series

Dormakaba MOD SPA Heavy Duty Parallel Arm (Super Parallel Arm)

LCN 1450-3077/PA Regular Arm w/ 62PA Parallel Arm Shoe for 1450 Series

Norton 8146 Drop Plate, Narrow Top Rail for 8000 Series