The timer is installed with a ground wire for better protection. Replaces existing ordinary single wall switch or multiple gang boxes. ✔️ EASY INSTALLATION - PLEASE CHECK WIRING INSTRUCTIONS BEFORE PURCHASING! The Suburban 521232 Replacement Motor is designed for Suburban SF-35Q, SF-35FQ, SFV-35Q, SFV-35FQ, SF-42Q, SF-45FQ, SFV-42Q, SFV-42FQ furnace models Buy ECOELER Countdown Timer Switch, 1 5 10 20 30 60 Min, 2 4 Hour, in Wall Timer Switch with Constant On Mode for Bathroom Fans and Lights, Neutral... ENERLITES 2 Hour Countdown Timer Switch, 5 10 20 30 Min, 1 2 Hr, for Bathroom Fans, Heaters, Lights, LED Indicator, 120VAC 800W, No Neutral Wire Required, UL Listed, HET06 J 2H W, White A quick and simple do-it-yourself project. ⏱️ SIMPLE TO USE - Push one button illuminated LED timer switch between OFF setting and 5/10/15/30 minutes or 1/2/4 hours. A totally quiet operation that automatically turns off when time expires. 🏠 AUTOMATE YOUR HOME - Works with your exhaust fan, heater, jacuzzi and more. Bathroom Fan Timer Switch Electric Digital Countdown Programmable Timer Bathroom Fan Light Switch Timer Switch For Lights