K&K Kolbe Double Hung Single Hung Window Balances | Color Coded - Window Balances for the old model Double Hung and Single Hung Kolbe & Kolbe windows. These are the Color-Coded Style Shoe as shown, and for Balances 28" - 36" in channel tube length. PRICED PER PAIR (2 Each) Tilting / Tilt Pak / Easy-Tilt Obsolete Double Hung and Single Hung Balances | BALANCE CLUTCHES ARE COLOR CODED. Please note that double hung units require four (4) balances for best results. In The COMMENT SECTION at CHECKOUT --- Specify Top or Bottom Sash, and the CLUTCH COLOR - Regular (White Clutch), Heavy Duty (Black Clutch), Extra Heavy Duty (Blue Clutch), Super Heavy Duty (Brown Clutch).