The 5035-2A is our Narrow Half Coupler with an attached half conical allowing for seamless integration to any standard chord of Cosmic Truss, be it square, triangular, ladder or the single chord F31 system. This coupler is great for creating vertical hang pipes and other constructions with a minimum if hardware. The 5035-2A coupler fits all standard pipes with a 2 inch (48-51mm) diameter, and features a tensile load capacity of 440lbs. (200kg).