HW – 503 air filters, replaces Honeywell Part number 203721. Free Shipping on all online orders.
Airguard Honeywell replacement filters are built for dependability and durability.
The Honeywell replacement filter model HW-503 replaces Honeywell part number 203720.
Actual Dimension: 19-3/4x20x4-3/8
| MERV Rating | |
|---|---|
| Manufacturer | Airguard |
| Market | Commercial, Hospitals, Industrial, Museum/Preservation, Residential |
We carry air filter replacements for all makes and models across all industries, from standard panels for residential use.
