Hero image 0 of 29" Caldwell Series 300 5/8" Channel Block & Tackle Window Balance - Stamp 28-2, 0 of 7

29" Caldwell Series 300 5/8" Channel Block & Tackle Window Balance - Stamp 28-2

4.6 stars out of 7 reviews

(4.6)|

29" Caldwell Series 300 5/8" Channel Block & Tackle Window Balance - Stamp 28-2 29 Caldwell Series 300 5 8 Channel Block Tackle Window Balance Stamp 28 2 29 Caldwell Series 300 5 8 Channel Block Tackle Window Balance Stamp 28 5 29 Caldwell Series 300 5 8 Channel Block Tackle Window Balance Stamp 28 3 29 Caldwell Series 300 5 8 Channel Block Tackle Window Balance Stamp 28 9 29 Caldwell Series 300 5 8 Channel Block Tackle Window Balance Stamp 28 4 29 Caldwell Series 300 5 8 Channel Block Tackle Window Balance Stamp 28 6

Size:28-2 (12-16 lbs)

Actual Color:Metal

Key item features

ENGINEERED FOR NON-TILT WINDOWS – Designed for side-load, non-tilt window systems with a standard 5/8″ metal channel, commonly used in vinyl and aluminum single- or double-hung frames. This balance measures 29" inches in length and supports 12-16 lbs sashes. Each balance arrives pre-assembled with top and bottom guides attached, so installation is fast and frustration-free—no special tools required.
AVAILABLE IN LENGTHS FROM 8″ TO 49″ (3 TO 44 LB RANGE) – The Series 300 fits nearly all non-tilt window sizes, from light residential sashes to heavy commercial frames. Covers a complete range of lengths and weight ratings for versatile use. Each balance is precision-tested for smooth, reliable performance and long-term durability. Sold individually; accessories and hardware not included. Contact WRS if your exact size isn’t listed.
SMOOTH, SAFE & SECURE OPERATION – The Series 300’s precision pulley and spring system balances the sash to prevent slamming or sticking, keeping windows steady at any height. Designed for quiet, reliable performance in homes, schools, and offices where safety and ease of use matter every day.
HEAVY-DUTY GALVANIZED STEEL CONSTRUCTION – Crafted from high-strength galvanized steel for long-term durability and corrosion resistance. Precision pulleys and springs maintain smooth lift through thousands of cycles, ensuring reliable performance for years of daily use. Built tough for pros yet simple enough for DIY installation.
TRUSTED SINCE 1989 – WRS Window Repair Systems has over 30 years of experience supplying reliable, high-quality hardware. Trusted nationwide by homeowners, contractors, schools, and property managers for dependable repairs and long-lasting performance.

Specs

Window balance type
block and tackle
Features
Non-Tilt
Material
Material
Brand
WRS
Rec. use
Window Screen
Piece count
1

Current price is $10.61

Price when purchased online

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Columbus, 43215

Arrives by Sat, Apr 11

Sold and shipped by Wholesale Product Supply

4.8125 stars out of 5, based on 32 seller reviews(4.8)

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About this item

Product details

The 300 Series is a standard block and tackle window balance for sideload / non-tilt window applications. 5/8" Channel Depth. To measure the balance, measure the length of the metal channel only. Balances include standard non-winged top and bottom guides. Includes the balance and pre-installed top and bottom guides only. No other parts are included. If you have questions, contact us before purchasing. If your metal channel does not match exactly, please contact us before you place your order.

ENGINEERED FOR NON-TILT WINDOWS – Designed for side-load, non-tilt window systems with a standard 5/8″ metal channel, commonly used in vinyl and aluminum single- or double-hung frames. This balance measures 29" inches in length and supports 12-16 lbs sashes. Each balance arrives pre-assembled with top and bottom guides attached, so installation is fast and frustration-free—no special tools required.
AVAILABLE IN LENGTHS FROM 8″ TO 49″ (3 TO 44 LB RANGE) – The Series 300 fits nearly all non-tilt window sizes, from light residential sashes to heavy commercial frames. Covers a complete range of lengths and weight ratings for versatile use. Each balance is precision-tested for smooth, reliable performance and long-term durability. Sold individually; accessories and hardware not included. Contact WRS if your exact size isn’t listed.
SMOOTH, SAFE & SECURE OPERATION – The Series 300’s precision pulley and spring system balances the sash to prevent slamming or sticking, keeping windows steady at any height. Designed for quiet, reliable performance in homes, schools, and offices where safety and ease of use matter every day.
HEAVY-DUTY GALVANIZED STEEL CONSTRUCTION – Crafted from high-strength galvanized steel for long-term durability and corrosion resistance. Precision pulleys and springs maintain smooth lift through thousands of cycles, ensuring reliable performance for years of daily use. Built tough for pros yet simple enough for DIY installation.
TRUSTED SINCE 1989 – WRS Window Repair Systems has over 30 years of experience supplying reliable, high-quality hardware. Trusted nationwide by homeowners, contractors, schools, and property managers for dependable repairs and long-lasting performance.

info:

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Specifications

Window balance type

block and tackle

Compatibility

sideload / non-tilt window applications

Features

Non-Tilt

Material

Warranty

Warranty information

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Customer ratings & reviews

4.6 out of 5 stars

stars7 ratings5 reviews

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Showing 1-3 of 5 reviews

Sep 14, 2024

WalmartCustomer

Sold and shipped byWholesale Product Supply

5 out of 5 stars review

Verified Purchase

Perfect fit and easy to install

Fast shipping and works great

Incentivized Review

Helpful?

Feb 2, 2023

Shirley

5 out of 5 stars review

Verified Purchase

Works great!

Easy installation. Strong spring action. Now we can open the window and it stays up!

Incentivized Review

Helpful?

Oct 1, 2024

Inboundbrad

Sold and shipped byWholesale Product Supply

5 out of 5 stars review

Verified Purchase

Easy fix

Exact replacement. Quick and easy. Window stay open again

Incentivized Review

Helpful?

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29" Caldwell Series 300 5/8" Channel Block & Tackle Window Balance - Stamp 28-2

Key item features

Specs

How do you want your item?

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