Spruce SDB190T Dryer Boost Fan Kit with Delay Timer Pressure Switch

SDB190T - Minimize drying time with Spruce's SDB190T Dryer Boost Fan Kit. The Kit features an RB190 Inline Fan, Mounting Bracket, and an air pressure sensing switch with recycling delay timer which activates the fan when dryer is in. use and runs for 10 minutes after the dryer shuts off (to maximize drying efficiency). Mount the fan a minimum of 15 ft away from the dryer to prevent wet lint from contacting the fan system. RB190 Fan Specs: CFM @ 0.2" WC is 148.