ReCon Retaining Walls are a high performance retaining wall system with the look, scale and durability of massive natural stone. KASTLE-wall is a unique and versatile system that can be designed to formerly unattainable gravity wall heights. KASTLE-wall precast retaining walls are quickly becoming the product of choice for a wide variety of commercial, residential and institutional retaining walls. KASTLE-wall can give you the aesthetics you want with the performance you need.