Enhance the performance of your tilt windows with the Caldwell Series 50 Slim Pencil-Type Insul-Tilt Spiral Balance, designed for residential and commercial applications. With its compact 3/8" diameter tube and precision spiral mechanism, this balance delivers consistent sash support and smooth, effortless operation. Engineered for versatility, the Series 50 is available in a range of lengths and weight ratings, offering a practical and cost-effective solution for replacing worn or broken balances without the need for full window replacement. Series 50 Insul-Tilt Features: Slim 3/8" diameter pencil-type tube Lengths available: 10" to 45" Weight capacities: 4–34 lbs (color-coded tips) Sold individually (hardware/accessories not included) Quick, DIY-friendly installation with basic tools Selection Guide: Measure only the metal tube (exclude spiral and tip) Confirm tube diameter (3/8") Match tip color to sash weight rating Contact WRS for non-standard sizes or specialty applications Whether you’re a homeowner handling a quick repair or a contractor maintaining multiple properties, the Caldwell Series 50 Insul-Tilt delivers an affordable, durable, and easy-to-install solution. For more than 30 years, WRS Window Repair Systems has been the trusted source for dependable window hardware nationwide. Choose the Series 50 Insul-Tilt Spiral Balance for proven performance and lasting value.