Integrity Window Balances | Marvin Double and Single Hung Balances - Integrity Window Balances | Marvin Double and Single Hung Balances - For your Marvin or Integrity by Marvin window replacement balances. [D/H] Double Hung and [S/H] Single Hung type windows. ALL BALANCES ARE PRICED PER PAIR - we have all types, models, sizes and all balance clutch options, clutch color codes and weight ranges for all MARVIN and INTEGRITY window balances.