***OBSOLETE-NO LONGER AVAILABLE-DO NOT ORDER!!!*** Honeywell Red Flag Filter Indicator.
Quantity in Basket: None
Honeywell S830 Filter Flag Indicator.
Honeywell Universal S830A1005 Red Flag Filter Indicator:
Indicates need to clean or replace air filters in forced-air heating, air conditioning and heat pump equipment.
Red flag drops into window on fan compartment suction increase, which is caused by filter becoming clogged with dirt.
Can also actuate an indicator light on system panel or special thermostat subbase.
Mounts on downstream side of furnace filter, directly on fan compartment or at a remote location using 1/4 in. tubing.