Premium Flex‑Leg Window Sash Replacement Weatherstrip | Kerf Set

Premium Flex‑Leg Weatherstrip - Universal Sash Seal for Multi‑Brand Legacy Old Window Systems from the 1970sthrough the 2010s 

Upgrade the sealing performance of your older legacy model casement and awning windows with this Premium Flex‑Leg Weatherstrip. Engineered with an enhanced double‑barb kerf insert, this modern sash seal creates a tighter, more reliable barrier between sash and frame — delivering superior efficiency compared to older felt, metal, or early foam weatherstripping found in legacy wood and metal windows. Compatible with a wide range of window profiles and brands (see diagram), this universal seal is ideal for older Alpine, Andersen, BF-Rich, Biltbest, Caradco, Cascade, Certainteed, Craftsman, Crestline, Croft, Eagle, Guardian, Hurd, Jeld-Wen, Kolbe, Lincoln, Marvin, Milgard, Norandex, Ply-Gem, Quaker, Sierra-Pacific, Traco, Weather-Shield, Therma-True, Alenco, Wenco and others. 

• Lengths: Ships in 150" stock lengths; cut to 75" , not precise lengths for shipping.

• Minimum Order: 120 lineal feet Per Order.

• Available Colors: Beige (standard) or Black. To receive Black, simply note “black” in the Drop-Down Menu