Side and overhead mounted tape style sash balances available below.
Works like a tape measure. Hook is attached to bottom corner of sash. Balance is installed flush in window jamb towards the top.
Frequently used in older homes where a wall of double hung sash was required. Sash could be installed closer together by eliminating the need for pockets for the counterbalance weights. Also useful for retrofitting older sash without counterbalances.
Available in many sizes.