Therm-O-Disc, Armstrong, Lennox 24V, SPST, 1 Switch, 2 Timing, Heat Sequencer Relay Replacement (M4/5: On @ 1-15s, Off @ 45-110s; M1/3: On @ 20-40s, Off @ 1-30s)
• OEM Upgraded Lennox Heat Sequencer Relay
• OEM Upgraded Lennox Heat Sequencer Relay