This allows you to hide the mounting of the glass for a clean and floating sheet effect. The Barton glass wall spillways saddle the top of the glass and contain a recess for mounting post caps as seen in the dimensional photos. Simply put, the Burton is the best engineered product of all glass wall spillways you can buy. Construction of the Burton glass wall spillway in stainless steel is made with fully-welded seams from thick gauge material. Manufactured in the USA from marine-grade stainless steel, this product contain a baffling system to distribute water evenly across it's width. The Barton glass wall sheet waterfall spillway finishes the top of your 18' wide glass sheet with a brushed stainless steel spillway that calms and projects water onto the glass for a dramatic effect in your residential or commercial application. Create indoor and outdoor waterfalls that brighten your landscape and design projects.