Zinc Channel FU (flat U channel) 1/4″ face width by Cascade Metals. Price listed is per box which includes approximately 71 pieces in 6′ lengths, 22 pounds of metal.
Outer Bars with a seam at the middle of the channel permit a slight spread of the channel. This channel has the adjustable channel. Outer Bars provide border support and additional rigidity to any stained glass panel, regardless of the medium used in the interior of the panel (zinc, brass, copper, lead, copper foil, etc.) Safety Data Sheet