Jambliner Window Channel Balance

BSI Jambliner Window Channel Balances for Tilt-in wood double hung windows. Jambliners are the vinyl tracks the window sash slides up and down on. Fits in the 3-1/4" wide vinyl Jambliner. The jambliner must be removed to get the ribbed channel balance out. Once the vinyl jamb-liner is removed the balance will slide out. Their are several possible attachments attached to the end of balance. ORDERING INFO: 1. Measure metal channel length. (Do not include the attachments. The length is usually 1" more than the number stamped in metal) 2. ID the Number stamped on metal balance. IE: 20, 20HD, 20TG, etc. The number indicates the glass size The other numbers or letters are the weight of the window balance. 3. Identify the appropriate end bracket / attachment from the ones shown. 4. This information determines what window balance is needed. 5. Read all information with each description to build proper unit.