Tjernlund: Powered Register Booster Fans, 2012-07-23

Designed for use in residential applications where homeowners’ rooms are uncomfortably hot or cold because their forced-air furnace/air conditioner blower cannot provide adequate velocity, the Duct Booster® register booster fans can now increase comfort. The register fans feature an energy-efficient, high-velocity cross-flow blower that is ultra-quiet (1.4 sones) and uses 20 W of electricity. Fans are available in two sizes to fit into standard 10- and 12-inch-wide register boots, plug into a 120-vac outlet and are compatible with SCP speed controls. A commercial-grade, paintable steel . . .
Designed for use in residential applications where homeowners’ rooms are uncomfortably hot or cold because their forced-air furnace/air conditioner blower cannot provide adequate velocity, the Duct Booster® register booster fans can now increase comfort.

Duct Booster Fans : Crawl Space Ventilation : Dryer Boosting : Tjernlund Products, Inc.

Tjernlund 12 Inch Register Booster Fan

Tjernlund Retail Store—Dryer Duct Booster (Model LB1), 5 Year No-Clog Guarantee

Designed for powered air intake and exhaust systems or to boost air flow in hard-to-heat or -cool areas. Housing with built-in duct stop on the inlet and crimped edge on the outlet.

Tjernlund Duct Booster 12 in. Duct Fan EF-12

Tjernlund - 7H-L0BE-W50U DBM4 Duct Booster Fan for 4 Flex or Metal Duct (100 CFM) : Everything Else

Tjernlund RB10 Register Booster Fan, Fits 4 x 10 Register, Brown

Duct Booster Fans : Crawl Space Ventilation : Dryer Boosting : Tjernlund Products, Inc.

Tjernlund M-49504351 In-Line Fan with Current Sensor Switch Dryer Duct Booster M

Tjernlund RB10 Register Booster Fan, Fits 4 x 10 Register, Brown: Built In Household Ventilation Fans: : Tools & Home Improvement

Tjernlund Duct Booster 4 in. x 12 in. Steel Register Booster Fan, Brown with Silent Blower RB12 - The Home Depot