Model KBMC-13BV (UR) Variable Speed Fan Control: Amazon.com: Industrial & Scientific
Rheostat Variable Speed Controller with ON/OFF Position
KB Electronics 8811001 KBMC-13BV (H9042) Solid State AC Control, black: Amazon.com: Industrial & Scientific
KB Electronics Model KBMS-13BV (UR) Variable Speed Fan Control, Panel Mount, Rated 3.0 Amps @ 120 VAC for use with Shaded Pole and PSC Motors: Amazon.com: Industrial & Scientific