The most popular style silicone jamb-up weatherstrip which is consist of extruded aluminum and silicone rubber. Aluminum
Extrusions are made of construction grade Alloy 6063-T5. They are available in mill finish, anodizing in clear, gold, brown, bronze
And black, painting in any colors.
Silicone has superior heat and cold resistance compared to other products.

*withstands a wind variety of temperature extremes and remains flexible from -75 F to 400F.
*Retains softness indefinitely will not deteriorate under normal exposure.
*Resists compression set lower than thermal plastic.
*Resists fungus, mildew, moisture and steam.
*Unaffected by sunlight, ozone and ultraviolet rays
*Nontoxic

One 36" header and 2PCS 84" uprights or any lengths you want. Slotted holes for easy adjustment. The first choice to fill Medium