This is the official OEM Williams Wall Furnace high altitude kit for model 5507332 Williams Wall Furnace.
Williams Part Number
Williams Wall Furnace High Altitude Kit: 7A325
There are no returns on this product. Please allow 3-4 weeks delivery. This kit includes all the required orifices. Please ensure this is the right part number based on your installation manual.
This is a special order part. No returns allowed.