Heat sinks are of polished, 304 stainless steel with outer diameters
varying between 1-5/8 in. and 2-1/4 in. (depending upon model chosen).
The wall thickness of the connectors is .049 in. (1.25 mm). Radii of the
bends as well as other dimensions of the connectors will vary with the
model chosen (refer to table). 1-1/2 in. or 2 in. quick connect union
fittings are included.