Channel 411A-OR Roll-In Oven RackThe Channel 411A OR oven rack will hold up to twenty 18 x 26 bun pans. The 411A OR is engineered from heavy duty high tensile extruded aluminum, type 6063 T5 alloy, making it both rust and corrosion resistant. Channel is so sure of its construction that they provide a lifetime warranty against rust and corrosion. The oven rack has 3 angle spacing. The 4 plate casters are swivel for easy maneuverability. The casters are high temp phenolic with Zerk