Amesbury Series 450 5/8" Channel Block & Tackle Window Balance for Tilt Windows

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  • $5.92

  • The 450 Series is a standard block and tackle window balance for tilt window applications. This balance is designed for residential or commercial window applications. These balances feature a 5/8" channel depth and lengths ranging from 13" to 56" and weight capacities from 3lbs to 40lbs you're sure to find the tilt block and tackle window balance to fit your needs.

    To Select the Correct Block and Tackle Balance:

    • First, measure the length of the metal channel. Measure the metal channel only, do not include the attachment pieces on the end. That is your balance length. Check out our guide on measuring block and tackle window balances for more info on how to measure your balances properly.
    • Next, take a look at the stamp on your balance. For this series, it will be engraved onto the back of the balance and have the form XXXX (e.g. 2130). Check out our blog to learn more about block and tackle balance stamps.
    • Finally, you will select the appropriate attachment option. If you need help determining the attachment you need, contact us and we will assist you. Attachments will be installed at our warehouse.
    • These measurements are crucial to the performance of the balance. If your balance does not measure an exact length, or if you think you have an extended travel balance, read this article and contact us before you place your order.

    Additional Information:

    • Balances are sold individually.
    • The information is based on two balances per sash with no weatherstrip friction considered.
    • AAMA Class 2 Verified Component.
    • Weight capacities are listed per pair of balances in pounds.
    • For optimal performance, we recommend replacing both balances at the same time.
    • Select your options to see the final price.
    • Don't have your balance in hand? Check out our blog on determining balance length without having the balance.


    Tilt Block and Tackle Balance Installation Guide

    To learn more about our Series 400 Block & Tackle Window Balances watch the video below:

    If the item you wish to purchase is out of stock or if you have questions about what part you need please Contact Us or Chat with us directly before you place your order.

    For additonal products view our full PDF catalog or give us a call at 1-800-842-0974

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