NHN 324S Door Closers Online » Products Page » NHN 300 Door Closers » NHN 324S Non-handed Door Closer with Hold-Open Arm. Technical Details... Power Size 2 - 4 (by position) Door width 850 - 1100mm 40 - 80kg Colour: Silver For OPEN-IN Door Price: $61.00 Updating cart...