Terminator (DC Series) from Primex is a termination for round ducting and a collar for diffusers and grilles in air distribution systems. The strong, industrial-grade plastic is durable and lightweight. Terminator is the solution to sloppy, inaccurate termination of HVAC ducting. This unique product is ideal for HRV, ERV and in-line fan supply and exhaust terminations.
Simply hold it in place on the joist or stud; it attaches in seconds. The 90° back-stop ensures a level mounting position. Ducting fits over the top collar and the rigidity of the bottom circular opening ensures the diffusers and grilles stay snug against the finished surface.