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Tjernlund’s Duct Booster register fans feature an energy-efficient, high-velocity cross-flow blower, are ultra-quiet (1.4 sones) and use 20 watts of electricity. Fans are available in two sizes to fit into standard 10” and 12” wide register boots, plug into a 120-VAC outlet and are compatible with SCP speed controls. A commercial-grade, paintable steel grille included with the fan has a low-profile design to rest flush with carpet or wood flooring.
