WRS Caldwell Series 300 Block & Tackle Window Balance – 5/8″ Channel, 32″ Length, Stamp 31-1 (6-12 lbs), Non-Tilt Side-Load Replacement Hardware – Heavy-Duty for Residential & Commercial Windows
$9.75
Price when purchased online
Free shipping
Free 30-day returns
Sold and shipped by school.anne.education
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here.
$9.75
Price when purchased online
Free shipping
Free 30-day returns
Sold and shipped by school.anne.education
Free 30-day returns Details
Product details
| Management number | 213815638 | Release Date | 2026/04/12 | List Price | $3.90 | Model Number | 213815638 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
- 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 32" inches in length and supports 6-12 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.
| Size | 31-1 (6-12 lbs) |
|---|---|
| Color | Metal |
| Style | American |
| Item Weight | 1 pounds |
| Part Number | 01-30031-1 |
| Manufacturer | Caldwell Manufacturing |
| Item model number | 01-30031-1 |
| Batteries Required | No |
| Product Dimensions | 32 x 0.62 x 0.62 inches |
| Item Package Quantity | 1 |
Bestseller ranking
Wall-Mounted
Customers who viewed this product also viewed
Window-Dressing Hardware
Correction of product information
If you notice any omissions or errors in the product information on this page, please use the correction request form below.
Correction Request Form