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Description The Catnic CN51C is a standard duty steel lintel designed for use in 200mm and 215mm exterior solid walls in masonry construction. This lintel is non-insulated and built to provide robust support for exterior solid walls. Key Features: For Solid Walls : Suitable for 200mm and 215mm exterior masonry solid walls. Non-Insulated : Designed for projects where insulation is not required. Galvanised Steel : Ensures durability and protection against corrosion. Black Powder Coating : Features Catnic's signature finish for additional weather resistance.