Comprising 16 models, HHP2 Hydronic High Performance Series is suited for rugged industrial applications in steam, hot water, glycol, or other fluid circulating heating systems. Units are designed for pressures and temperatures to 450 psi and 550°F, respectively, in single-pass and multi-pass core configurations. Series includes 30 in. fan size model, which integrates single multi-wing fan blade and speed reducer instead of 2 motors and 2 fan blades.