Delay timer, bypass, 18-240 Vac, dial adjustment, 10-1000 sec delay, 1A

Delay timer, heat pump defrost, 621 type, low cost, 30/60/90 min., 10 min. defrost time, 18-30 Vac

Delay timer, heat pump defrost, OEM replacement, 30/60/90 min., Nordyne, 624519A