Here's one of the top products run in PME throughout the year 2002. Twistlink, the mini-modular radiant heating manifold, is targeted as a solution for very basic systems, such as garage floors, basements and floor warming, where flow balancing and precise control is not required. The Twistlink mini-manifold features a modular design with supply and return module pairs; plastic construction; full flow; 3/4" supply end connections; supply shut-offs; and interchangeable pipe to manifold connecters in 3/8", 1/2", and 5/8". The mini-supply module provides on/off manual control to allow isolation of individual loops and can be assembled into groups of up to five pairs. Heatlink.