These are the OEM Bilt-Best Casement Window Weather-Strip Parts for your old

BiltBest Casement and Awning Windows. Installed on Horizontal Sill and Head

BiltBest was a respected Missouri‑based window manufacturer known for pioneering wood‑clad innovations and high‑quality products from the 1950s until its closure in 2010, with replacement parts now supplied by successor specialists like BiltbestWindowParts - part of the AllWindowDoorParts Group USA - Casement and Awning Window  weatherstripping parts, sash and window frame weather Strip. NOTES: Standard colors today are Tan / beige. Wood and Clad Casement Frame Type Weather Seals.

Casement / Awning Window Sash Weather Strip Improved Design Dual Seal - more efficient with the double function design and improved seal capability between wood sash and main window frame. NONE BETTER - and can be used on many casement and awning style wood sash units built from 1970's thru 2000's. Standard color is BEIGE, but also available in BLACK elsewhere on this site.