Skip to main content
WRS 27" Series 300 Block and Tackle Window Balance, Stamp 26-5, Non-Tilt
WRS

WRS 27" Series 300 Block and Tackle Window Balance, Stamp 26-5, Non-Tilt

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

$10.92

As an Amazon Associate, SpecPicks earns from qualifying purchases.

*Price sourced from Amazon.com. Last updated 2026-08-26. Price and availability subject to change.

Bottom line: The WRS 27" Series 300 Block and Tackle Window Balance, Stamp 26-5, Non-Tilt is a niche pick — read recent reviews before buying in the retro software & media category, priced around $10.92. Compare close alternatives before committing.

SpecPicks Verdict

SpecPicks scored WRS 27" Series 300 Block and Tackle Window Balance, Stamp 26-5… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the retro software & media category. WRS's retro software & media lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for retro software & media of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ Backed by WRS's warranty and support channels
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • REPLACEMENT WINDOW SASH BALANCE FOR NON-TILT WINDOWS – If your double or single hung window won't stay up, drops on its own, or feels heavy to lift, a worn block and tackle balance is often the cause; this Series 300 balance restores smooth, controlled sash movement. This window sash balance is the correct replacement for sideload, non-tilt windows needing extra travel.
  • SPRING AND PULLEY SYSTEM – A weighted spring inside the metal channel works with an internal pulley and cord to counterbalance the sash, holding the window open at any height without a prop. This is a genuine window balance spring replacement, not a generic window springs replacement kit, so it restores factory-matched performance rather than a universal fit.
  • 5/8" METAL CHANNEL CONSTRUCTION – Housed in a 5/8" channel with a spring rated 26 to 30 lbs for this stamp, matched to the weight of your existing sash for consistent, long-term performance. As a non-tilt block and tackle balance, it is built for consistent daily use across its full extended travel range.
  • MEASURE BEFORE YOU ORDER – This balance measures 27" long (metal channel only) and is stamped 26-5; compatibility varies by window manufacturer and model, so confirm your channel depth and length before ordering to avoid a return.
  • WHAT YOU GET – One Series 300 block and tackle balance with an overall length of 27" and a 5/8" channel depth, rated 26-30 lbs for stamp 26-5, guides pre-assembled; sold individually, take-out clips and other hardware not included.
  • WRS — TRUSTED WINDOW HARDWARE SINCE 1989 – Window Repair Systems has been supplying precision-fit window and door hardware to homeowners, contractors, property managers, schools, and commercial facilities nationwide for over 35 years. Every part is sourced to help you repair — not replace. Shop with confidence.

Full Specifications

Size‎26-5 (26-30 lbs)
BrandWRS
Color‎Metal
Style‎American
Finish‎Unfinished
Part Number‎01-30026-5
Included Components‎Series 300 Block & Tackle Balance
Item Package Quantity‎1

Ready to buy?

WRS 27" Series 300 Block and Tackle Window Balance, Stamp 26-5, Non-Tilt is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

See live eBay listings →

*Price sourced from Amazon.com. Last updated 2026-08-26. Price and availability subject to change.

Related Retro Software & Media

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →