Weatherstripping Available colors for Windows & Doors: Q-lon Weatherstripping (650 & 250): Black White Brown Q-lon 650 (for Door Frames) – above in Brown, White and Black (from left to right) .250 Kerf Seal (for Dutch Door meeting rails & Double Hung Check Rail) – above in Brown, White and Black (from left to right) Bulb Weatherstripping (straight & offset): Black White Brown Bulb (Straight) – above in Brown, White and Black (from left to right) Bulb (Offset) – above in Brown, White and Black (from left to right)