#1 Home Improvement Retailer

Internet # 205575121

Model # FA 1640

Store SKU # 1001016791

17 in. Window Block and Tackle Sash Balance

  • Heat-treated steel spring for durability
  • Support window vent weight of 14 - 19 pounds
  • Other lengths and window weight allowances are available
  • View More Details
0 in stock
Free & Easy Returns In Store or Online
Return this item within 90 days of purchase. Read Return Policy

Product Details

About This Product

This non-tilt block and tackle channel balance is constructed of a mill-finished steel U-frame housing. The internal working components include a spring, cord and pulley system, but the plastic top and bottom guide shoes must be selected separately as they are not included with the balance itself. These window counter balances are used to counter-weight the moving sash on single and double hung vinyl windows. If your windows (sashes), are having problems staying up when opened, it may be that your sash balances or hardware needs to be replaced. The sash balances hold the weight of the window pane, over time, the springs can wear out or fail. Replace your sash balance for a smoother operation of your window and allow fresh air to enter your home with a window that stays open.


  • Can be used on most single or double hung windows
  • Heat treated high tension steel spring
  • Will offset the weight of a window between 14 and 19 pounds
  • 5/8 inch aluminum channel housing
  • Compare old guide ends and note their dimensions to order the new guide ends
  • Must select the top and bottom guide ends that are sold separately
  • Prime-Line part H 3740 riveting tool can be ordered separately for installation of guide ends
  • Please refer to the line art for dimensions and compare with your needs before ordering
  • Return Policy

Product Information

Internet # 205575121

Model # FA 1640

Store SKU # 1001016791


Dimensions: H 0.625 in, W 2 in, D 18 in


Product Depth (in.)

18 in

Product Height (in.)

0.625 in

Product Width (in.)

2 in


Builders Hardware Product Type

Other Window Repair



Package Quantity




Window Repair Type


Warranty / Certifications

Manufacturer Warranty

Goods are warranted against manufacturing defects for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse.

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

3.7 out of 5

  • 3.7 out of 3 reviews
  • 0% recommend this product
Filter by:
Showing 1-3 of 3 reviews
these for exactly like the original ones...
these for exactly like the original ones
  • Verified Purchase
    This was not the complete part I needed. Had to...
    This was not the complete part I needed. Had to return.
    • Verified Purchase
    Showing 1-3 of 3 reviews