Functional Devices RIBLB SKU: RIBLB $215.10 $430.20 Quantity -+ Limited Factory Stock Details Functional Devices RIBLB : Enclosed AHU Fan Safety Circuit, 24 Vac Power Input, Made in USA, UL Listed Data Sheet DetailsData Sheet Back Functional Devices RIBLB : Enclosed AHU Fan Safety Circuit, 24 Vac Power Input, Made in USA, UL Listed Back Stocked items ship in 1 business day. Factory items typically ship in 3-5 business days (estimate only). Actual times may vary.Email sales@energycontrol.com for more information.